Drilldown: Patents

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Patents > Supplementary to patent : Patent FR-1908-389993 or Patent GB-1909-8531 & IPCs: IPC B64C17/00

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Year filed:
(There are no values for this filter)
Year granted:
(There are no values for this filter)
Office:
FR (1) · GB (2)
Inventors:
Sam Leonard Walkden (3)
Inventor country:
GB (3)
Applicant person:
Sam Leonard Walkden (3)
Applicant firm:
None (3)
Applicant type:
INDIV (3)
Applicant is inventor:
Yes (3)
Tech fields:
Aerodynamics (1) · Airplane (3) · automatic stability (2) · Design (2) · Frame (1) · gliders (3) · Propellers (1) · Stability (2) · Subsystem (2)
Filing date:
August 1909 (1) · March 1910 (2)
Full specification filed date:
October 8, 1909 (1)
Application number:
None (1) · 191006051D (1) · 414994D (1)
Grant date:
April 1910 (1) · July 1910 (1) · March 1911 (1)
Granted:
Yes (3)
Publication date:
April 1910 (1) · September 1910 (1)
Supplementary to patent: (Click arrow to add another value)
Related to aircraft:
Yes (3)
Patent agent:
Abel & Imray‎ (2) · J. Fayollet (1)
Assigned to:
None (3)
National tech categories:
None (2) · FR 6.4 (1)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C17/00 (3) · CPC B64C2700/6218 (2)
Family year:
(There are no values for this filter)
First filing:
No (3)
Cites these patents:
None (3)
Citations from after 1930:
None (3)
Number of text pages:
None (1) · 3 (1) · 9 (1)
Number of claims:
None (1) · 1 (1) · 9 (1)
Number of diagram pages:
None (1) · 1 (2)
Number of figures:
None (1) · 2 (1) · 6 (1)

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