Drilldown: Patents

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Patents > Filing date: 1920 - 1929 & Number of diagram pages: 3-4

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Year filed:
1920 (3) · 1921 (2) · 1922 (1) · 1927 (1) · 1929 (1)
Year granted:
1921 (2) · 1922 (3) · 1924 (1) · 1927 (1) · 1930 (1)
Office:
FR (2) · GR (1) · US (5)
Inventors:
Charles Arthur Wragg (1) · George Lehberger (1) · George W. Morrow (1) · Marcel Mathieu Étienne Besson (1) · Pierre Levasseur (1) · Rene Cecil Motte (1) · William Davey Oddy (1) · William John Adderley (1) · William Leslie Denham (1)
Inventor country:
AU (1) · FR (2) · GB (2) · US (4)
Applicant person:
Charles-Arthur Wragg (1) · George Lehberger (1) · George W. Morrow (1) · Marcel Mathieu Étienne Besson (1) · Pierre Levasseur (1) · Rene Cecil Motte (1) · William Davey Oddy (1) · William John Adderley (1) · William Leslie Denham (1)
Applicant firm:
None (7) · Cloverleaf Propeller Co. (1)
Applicant type:
COMPANY+INDIV (1) · INDIV (7)
Applicant is inventor:
Yes (8)
Tech fields:
None (2) · airfoil (1) · airplane (2) · biplane (1) · camber (1) · chassis (1) · construction (1) · fuselage (1) · helicopter (1) · landing (1) · lift (1) · Propeller (1) · propellers (1) · takeoff (1) · wheels (1) · wing (1)
Filing date:
1920 (3) · 1921 (2) · 1922 (1) · 1927 (1) · 1929 (1)
Full specification filed date:
April 4, 1921 (1)
Application number:
None (6) · 22495318 (1) · 457036D (1)
Grant date:
1921 (2) · 1922 (3) · 1924 (1) · 1927 (1) · 1930 (1)
Granted:
Yes (8)
Publication date:
None (4) · 1921 (1) · 1922 (2) · 1927 (1)
Supplementary to patent:
None (6) · Patent GB-1918-140127 (1) · Patent US-1918-1589780 (1)
Related to aircraft:
1 (8)
Patent agent:
None (1) · Barlow et Gentizon (1) · Charles Assi (1) · Clement Lean (1) · Dewey, Strong, Townsend & Loftus (1) · James L. Norris (1) · Leoik? C. Fischer (1) · Munn & Co. (1)
Assigned to:
None (8)
National tech categories:
None (4) · FR 6.4 (3) · USPC 244/65 (1) · USPC 244/7R (1)
IPCs:
None (1) · IPC B63B1/22 (1) · IPC B63H1/12 (1) · IPC B64C11/36 (1) · IPC B64C27/04 (1) · IPC B64C29/00 (1) · IPC B64C35/00 (1) · IPC B64C9/16 (1)
CPCs:
None (1) · CPC B21D51/383 (1) · CPC B63B1/22 (1) · CPC B63H1/18 (1) · CPC B63H1/26 (1) · CPC B64C11/36 (1) · CPC B64C27/04 (1) · CPC B64C29/0033 (1) · CPC B64C35/00 (1) · CPC B64C9/16 (1)
Family year:
1912 (1) · 1918 (2) · 1920 (2) · 1922 (1) · 1924 (1) · 1929 (1)
First filing:
None (1) · No (2) · Yes (5)
Cites these patents:
None (8)
Citations from after 1930:
None (3) · 1 (1) · 6 (2) · 7 (1) · 9 (1)
Number of text pages:
2 (4) · 4 (3) · 5 (1)
Number of claims:
None (1) · 1 (1) · 3 (2) · 4 (1) · 5 (1) · 8 (2)
Number of diagram pages:
3 (6) · 4 (2)
Number of figures:
4 (1) · 5 (2) · 7 (1) · 8 (3) · 29 (1)

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