Drilldown: Patents

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Patents > Grant date: June 1921 & Number of text pages: 2-3

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Year filed:
1913 (1) · 1914 (2) · 1915 (1) · 1916 (3) · 1917 (1) · 1920 (2)
Year granted:
(There are no values for this filter)
Office:
DE (3) · FR (5) · GB (2)
Inventors:
None (4) · Adolph Ditriech Wittemann (1) · Charles Rudolph Wittemann (1) · Hugo Junkers (1) · Louis Blériot (1) · Maurice-Achille Lécuyer (2) · Société des Appareils d'Aviation Doutre (1)
Inventor country:
DE (4) · FR (5) · US (1)
Applicant person:
None (3) · Adolph Ditriech Wittemann (1) · Charles Rudolph Wittemann (1) · Hans Reissner (1) · Hugo Junkers (1) · Louis Blériot (1) · Maurice-Achille Lécuyer (2) · Société des Appareils d'Aviation Doutre (1)
Applicant firm:
None (8) · Ago Flugzeugwerke G. m. b. H. (1) · Société des Appareils d'Aviation Doutre (1)
Applicant type:
COMPANY (4) · INDIV (5) · UNIV-PRO-GOV (1)
Applicant is inventor:
None (2) · No (2) · Yes (6)
Tech fields:
None (5) · aerodynamics (1) · airplane (3) · cargo (1) · construction (1) · control (1) · design (1) · frame (1) · gun (1) · lift (1) · military (1) · passenger (1) · propeller (1) · rudder (1) · stability (1) · subsystem (1) · sustentation (1) · wings (1)
Filing date:
1913 (1) · 1914 (2) · 1915 (1) · 1916 (3) · 1917 (1) · 1920 (2)
Full specification filed date:
None (10)
Application number:
None (2) · 23309D (1) · 23451D (1) · 23452D (1) · 304238D (1) · 337522D (1) · 337831D (1) · 526118D (1) · 526119D (1)
Grant date:
June 1, 1921 (1) · June 6, 1921 (2) · June 8, 1921 (1) · June 9, 1921 (2) · June 24, 1921 (2) · June 28, 1921 (2)
Granted:
Yes (10)
Publication date:
October 1, 1921 (2) · November 2, 1921 (1) · November 30, 1921 (2)
Supplementary to patent:
None (4) · Patent BE-1913-10-15-Doutre (1) · Patent DE-1915-10-06 AGO Flugzeugwerke G. m. b. H. (1) · Patent DE-1915-339218 (1) · Patent FR-1908-400578 (1) · Patent FR-1915-525800 (2)
Related to aircraft:
None (1) · 1 (7) · Yes (2)
Patent agent:
None (6) · Jensen & Son (1) · Paul Coulomb (2) · Weismann et Marx (1)
Assigned to:
None (10)
National tech categories:
None (2) · DE 62c.3 (1) · DE 77h.5 (1) · DE 77h.6 (1) · DE 77h.7 (1) · FR 6.4 (5)
IPCs:
IPC B21D53/78 (1) · IPC B64C1/00 (2) · IPC B64C11/24 (1) · IPC B64C13/00 (1) · IPC B64C17/00 (3) · IPC B64C23/00 (2) · IPC B64C3/00 (2) · IPC B64D27/04 (1) · IPC B64D7/02 (1)
CPCs:
CPC B21D53/78 (1) · CPC B64C11/24 (1) · CPC B64C13/00 (1) · CPC B64C17/00 (3) · CPC B64C23/005 (2) · CPC B64C2700/6212 (1) · CPC B64C2700/6218 (2) · CPC B64C2700/6233 (1) · CPC B64C2700/6256 (1) · CPC B64C2700/6274 (2) · CPC B64C3/00 (2) · CPC B64D27/04 (1) · CPC B64D7/02 (1)
Family year:
None (1) · 1908 (1) · 1913 (2) · 1914 (1) · 1915 (2) · 1916 (3)
First filing:
None (1) · No (3) · Yes (6)
Cites these patents:
None (10)
Citations from after 1930:
None (8) · 1 (2)
Number of text pages:
2 (7) · 3 (3)
Number of claims:
None (3) · 1 (3) · 2 (1) · 4 (1) · 5 (2)
Number of diagram pages:
1 (10)
Number of figures:
1 (4) · 3 (2) · 4 (1) · 5 (2) · 12 (1)

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