Copy typed letter from Frederick Lanchester to Patent Office, acknowledging their letter of 29 January 1938 (LAN/2/28/12)

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Accepts their explanation and notes that he had misinterpreted the letter.

Archive Record|Table of contents

Frederick Lanchester collectionLAN

Correspondence and other documents ('Baxter' series)LAN/1

Frederick Lanchester correspondence and documents ('Fletcher' series)LAN/2

Biographical information on Frederick LanchesterLAN/2/1

Material on Frederick Lanchester compiled by Dr Peter Kingsford for his biography of LanchesterLAN/2/2

Frederick Lanchester reports for the Advisory Committee for AeronauticsLAN/2/3

Correspondence between Frederick Lanchester and the Advisory Committee for AeronauticsLAN/2/4

Correspondence relating to flightLAN/2/5

Lanchester's Laboratories LimitedLAN/2/6

Material relating to car manufactureLAN/2/7

PublicationsLAN/2/8

Personal and business correspondenceLAN/2/9

Frederick Lanchester's views on warfare tacticsLAN/2/10

Correspondence concerning financial matters, and Frederick Lanchester's deathLAN/2/11

Material relating to worm gears, aircraft propellers and wings, and Lanchester's Laboratories Ltd salesLAN/2/12

Reprints of articles and publications written by or about Frederick LanchesterLAN/2/13

Correspondence mostly relating to the publication of Frederick Lanchester's 'Potted Logs'LAN/2/14

Miscellaneous correspondence including with Colonel [Rookes] Crompton, electrical engineering pioneerLAN/2/15

Frederick Lanchester papers on optics and visualsLAN/2/16

Anatomy and vision/opticsLAN/2/17

Anatomy and vision/opticsLAN/2/18

Correspondence mostly concerning articles, papers and talks on vision and opticsLAN/2/19

Correspondence from Frederick Lanchester to Professor Robert LockhartLAN/2/20

Correspondence from Frederick Lanchester to Professor Robert Lockhart and othersLAN/2/21

Correspondence from Professor Robert Lockhart to Frederick LanchesterLAN/2/22

Copy correspondence from Professor Robert Lockhart to Frederick Lanchester, Lanchester family members and othersLAN/2/23

Correspondence between Frederick Lanchester and Robert LockhartLAN/2/24

Correspondence between Frederick Lanchester and Robert Lockhart mostly concerning anatomy, optics, visionLAN/2/25

Supplemental material donated at a later date - mostly aeronautical/militaryLAN/2/26

Supplemental material donated at a later dateLAN/2/27

PatentsLAN/2/28

Printed letter from Patent Office to Frederick Lanchester accepting application and provisional specificationLAN/2/28/1

Printed receipt from Patent Office acknowledging receipt of patent application No. 12899LAN/2/28/2

Printed receipt from Patent Office for patent application and provisional specification for No. 12899LAN/2/28/3

Typed copy of patent for Improvements relating to the induction systems of internal combustion engines more especially for aircraftLAN/2/28/4

Typed copy letter from Frederick Lanchester to Patent Office, enclosing Provisional Specification, "Improvements in the construction and motive power mechanism and suspension of automobile road vehicles"LAN/2/28/5

Patent form with provisional specification for Improvements in the construction and motive power mechanism and suspension of automobile road vehiclesLAN/2/28/6

Typed copy of LAN/2/28/6LAN/2/28/7

Printed receipt of patent application and provisional specification 32436 (LAN/2/28/6)LAN/2/28/8

Typed letter from Patent Office to Frederick Lanchester noting that his application seems to comprise more than one inventionLAN/2/28/9

Typed copy reply from Frederick Lanchester to Patent Office letter (LAN/2/28/9)LAN/2/28/10

Duplicate copy of LAN/2/28/10LAN/2/28/11

Letter from Patent Office to Frederick Lanchester replying to his letter of 11 January 1938 (LAN/2/28/10)LAN/2/28/12

Printed leaflet from Patent Office enclosed with LAN/2/28/12 on notes as to manner of amending documentsLAN/2/28/13

Copy typed letter from Frederick Lanchester to Patent Office, acknowledging their letter of 29 January 1938 (LAN/2/28/12)LAN/2/28/14

Copy typed letter from Frederick Lanchester to Patent Office enclosing provisional patent specification "Improvements in brakes for aircraft"LAN/2/28/15

Typed copy of patent 'Improvements in [air]brakes for aircraft'LAN/2/28/16

Printed receipt from Patent Office for LAN/2/28/16LAN/2/28/17

Typed letter from Patent Office to Frederick Lanchester concerning his brakes patent (LAN/2/28/16)LAN/2/28/18

Typed copy letter from Frederick Lanchester to Patent Office agreeing to their title change suggestion concerning LAN/2/28/16LAN/2/28/19

Printed receipt from Patent Office for revised specification of LAN/2/28/16LAN/2/28/20

Patent Office form accepting LAN/2/28/16LAN/2/28/21

Printed leaflet from Patent Office enclosed with LAN/2/28/21 on notes as to manner of amending doxumentsLAN/2/28/22

Draft typescript of [first] draft of provisional specification for 'improved mechanism for the propulsion of aircraft and the dropping of bombs and other objects'LAN/2/28/23

Typed draft complete specification for LAN/2/28/3 with accepted title 'improvements in and relating to aircraft'LAN/2/28/24

Typed copy of provisional patent specification 6509 'Improved mechanism for the propulsion of aircraft and for the dropping of bombs and other objects'LAN/2/28/25

Complete patent specification for 'Improvements in and relating to aircraft' (application no. 6509)LAN/2/28/26

Typed copy of patent application 'Improvements in and relating to aircraft'LAN/2/28/27

Letter from Patent Office to Frederick Lanchester asking for change to the title of patent application 6509, and for some clerical errors to be correctedLAN/2/28/28

Typed copy of letter from Frederick Lanchester to Patent Office, complaining about the methods used by them in deciding on function and novelty of patent applicationsLAN/2/28/29

Copy of LAN/2/28/29LAN/2/28/30

Typed copy notes by Frederick Lanchester to the Patent Office on 'My explanantion of the apparent paradox (200% efficiency)'LAN/2/28/31

Letter from Patent Office to Frederick Lanchester in response to his letter of 18 April 1939LAN/2/28/32

Copy typed letter from Frederick Lanchester to Patent Office, enclosing forms 1 and 2 relating to application 6509LAN/2/28/33

Letter from Patent Office to Frederick Lanchester asking for some amendments to forms 1 and 2 (concerning application 6509),LAN/2/28/34

Patent Office form accepting application and provisional specification for 6509 'improvements in and relating to aircraftLAN/2/28/35

Typed copy letter from Frederick Lanchester to Patent Office, enclosing copies of four articles from Flight magazine relevant to his dispute with them on efficiency (see LAN/2/28/31)LAN/2/28/36

Receipt from Patent Office for complete specification of 6509LAN/2/28/37

Form from the Patent Office to Frederick Lanchester with examiners report on application 6509LAN/2/28/38

Typed notes, with many (later?) handwritten amendments on 'Improvements in aeroplanes for flying at high altitudes' by Frederick LanchesterLAN/2/28/39

Typed copy of provisional patent application 'Improvements in aeroplanes for flying at high altitudes'LAN/2/28/40

Patent application specification for 'Improvements in aeroplanes for flying at high altitude'LAN/2/28/41

Typed copy of LAN/2/28/41LAN/2/28/42

Letter from Patent Office to Frederick Lanchester, concerning application 6510LAN/2/28/43

Notes from Patent Office on the manner of amending documents and purchase or inspection of specificationsLAN/2/28/44

Form from the Patent Office to Frederick Lanchester with examiners report on application 6510LAN/2/28/45

Copy typed version of 'Improvements relating to the induction system of internal combustion engines as applied to aircraft'LAN/2/28/46

Letter from Patent Office to Frederick Lanchester concerning provisional specification 6511LAN/2/28/47

Copy typed letter from Frederick Lanchester to Patent Office returning amended versions of patent specifications 6510 and 6511LAN/2/28/48

Form from Patent Office to Frederick Lanchester accepting application and provisional specification for 'improvements to the induction system of internal combustion engines as applied to aircraft'LAN/2/28/49

PatentsLAN/2/29

Notes and correspondence on obtaining copyright on a book in the U.S.A.LAN/2/30

Miscellaneous correspondenceLAN/2/31

Lists compiled by Frederick LanchesterLAN/2/32

BlueprintsLAN/3

Sketch booksLAN/4

Note booksLAN/5

Glass plate negatives and imagesLAN/7

Photographic negatives of the blueprints (LAN/3)LAN/8

Sales and marketing photographsLAN/9