Drilldown: Patents

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Patents > Inventor country : AH or DE & Filing date: July 1920

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Year filed:
(There are no values for this filter)
Year granted:
(There are no values for this filter)
Office:
DE (1) · FR (1) · GB (10)
Inventors:
None (9) · Anton Flettner (1) · Anton Heinen (1) · Gabriel Letsch (1)
Inventor country: (Click arrow to add another value)
Applicant person:
None (10) · Anton Flettner (1) · Anton Heinen (1)
Applicant firm:
None (3) · AGO Flugzeugwerke G. m. b. H. (2) · Ballonhüllen Gesellschaft m.b.H. (1) · Daimler-Motoren-Gesellschaft (1) · Gothaer Waggonfabrik A. G.‎ (1) · Vickers Limited (1) · Zeppelin-Werke G.m.b.H. (3)
Applicant type:
None (1) · COMPANY (8) · COMPANY + INDIV (1) · COMPANY+INDIV (1) · INDIV (1)
Applicant is inventor:
None (7) · No (1) · Yes (4)
Tech fields:
airplane (6) · cargo (1) · chassis (1) · compartments (1) · control (1) · design (2) · engine (2) · frame (1) · gun (1) · hydroaeroplane (1) · landing (1) · marine (2) · military (1) · motor (2) · Parachutes (1) · passenger (1) · process (1) · propeller (1) · safety (2) · seaplane (2) · Shock-absorbers (1) · steering (1) · testing (1) · triplane (1) · wheels (1)
Filing date:
July 1, 1920 (1) · July 2, 1920 (2) · July 5, 1920 (1) · July 9, 1920 (3) · July 10, 1920 (4) · July 21, 1920 (1)
Full specification filed date:
None (12)
Application number:
None (12)
Grant date:
September 1920 (1) · January 1921 (1) · May 1921 (2) · June 1921 (2) · October 1921 (1) · November 1921 (1)
Granted:
No (3) · Yes (9)
Publication date:
None (9) · 1921 (2) · 1924 (1)
Supplementary to patent:
None (2) · Patent DE-1915-05-31 Daimler Motoren-Gesellschaft (1) · Patent DE-1915-10-06 AGO Flugzeugwerke G. m. b. H. (1) · Patent DE-1915-299150 (1) · Patent DE-1915-339218 (1) · Patent DE-1916-349065 (1) · Patent DE-1917-306449 (1) · Patent DE-1917-Zeppelin-Werke (1) · Patent DE-1918-10-24 Anton Heinen or Ballonhüllen Gesellschaft m.b.H. (1) · Patent DE-1918-388537 (1) · Patent GB-1919-07-29 Vickers Limited (1) · Patent GB-1920-04-06 Vickers Limited (1)
Related to aircraft:
1 (10) · Yes (2)
Patent agent:
None (3) · F. Harlé et G. Bruneton (1) · Fell & James (1) · Haseltine, Lake & Co. (1) · Jensen & Son (2) · L. N. Reddie (1) · W. P. Thompson & Co. (3)
Assigned to:
None (12)
National tech categories:
None (10) · DE 77h.9 (1) · FR 6.4 (1)
IPCs:
IPC B64C3/00 (3) · IPC B64C35/00 (2) · IPC B64C9/10 (1) · IPC B64D17/36 (1) · IPC B64D27/04 (2) · IPC B64D31/04 (1) · IPC B64D7/02 (1) · IPC B64F1/22 (2) · IPC G01M15/02 (1)
CPCs:
B64D31/04 (1) · CPC B64D27/04 (1) · CPC B64C3/00 (3) · CPC B64C35/00 (1) · CPC B64C35/008 (1) · CPC B64C9/10 (1) · CPC B64D17/36 (1) · CPC B64D27/04 (1) · CPC B64D7/02 (1) · CPC B64F1/221 (2) · CPC G01M15/02 (1)
Family year:
None (3) · 1915 (3) · 1916 (1) · 1917 (1) · 1918 (3) · 1919 (1)
First filing:
None (5) · No (7)
Cites these patents:
None (12)
Citations from after 1930:
None (12)
Number of text pages:
1 (2) · 2 (8) · 3 (1) · 4 (1)
Number of claims:
None (1) · 1 - 2 (1) · 2 - 7 (10)
Number of diagram pages:
1 (9) · 2 (3)
Number of figures:
1 - 4 (7) · 4 - 8 (5)

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