Drilldown: Patents

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Patents > Office: GB & Tech fields: propellers & Number of diagram pages: 2-7

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Year filed:
(There are no values for this filter)
Year granted:
(There are no values for this filter)
Office: (Click arrow to add another value)
Inventors:
Howard Crunden Cleaver (1) · Richard Matthews Ruck (1)
Inventor country:
GB (2)
Inventor location:
None (2)
Applicant person:
Howard Crunden Cleaver (1) · Richard Matthews Ruck (1)
Applicant firm:
None (2)
Applicant type:
INDIV (2)
Applicant is inventor:
Yes (2)
Tech fields: (Click arrow to add another value)
Filing date:
September 1917 (1) · May 1918 (1)
Full specification filed date:
March 19, 1919 (1)
Application number:
12921/17 (1) · 902718 (1)
Grant date:
September 1918 (1) · July 1920 (1)
Granted:
Yes (2)
Publication date:
None (2)
Supplementary to patent:
None (1) · Patent GB-1916-112480 (1)
Related to aircraft:
1 (2)
Patent agent:
A. M. & William Clark (1) · J. D. Roots & Co. (1)
Assigned to:
None (2)
National tech categories:
None (2)
IPCs:
None (1) · IPC B64C11/20 (1)
CPCs:
CPC B64C11/20 (1) · CPC B64C13/24 (1)
Family year:
(There are no values for this filter)
First filing:
Yes (2)
Cites these patents:
None (2)
Citations from after 1930:
None (2)
Number of text pages:
6 (1) · 11 (1)
Number of claims:
6 (1) · 9 (1)
Number of diagram pages:
2 (1) · 4 (1)
Number of figures:
7 (1) · 28 (1)

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