Drilldown: Patents

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Patents > Office : IT or US & Citations from after 1930: 3-5 & Number of text pages: 2-3

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Office: (Click arrow to add another value)
Inventors:
Spencer Heath (2) · John J. Rectenwald (2)
Inventor country:
Applicant person:
John J. Rectenwald (2) · Spencer Heath (2)
Applicant is inventor:
Tech fields:
None (18) · frame (9) · LTA (8) · military (8) · Propeller (8) · propulsion (7) · stability (7) · projectile (7) · rudder (6) · helicopter (5) · propellers (4) · airplane (4) · navigation (4) · airfoil (4) · kite (4)
Full specification filed date:
Application number:
None (35)
Granted:
Publication date:
Related to aircraft:
Patent agent:
Munn & Co. (9) · None (6) · None (6) · Victor J. Evans (3) · James L. Norris (2)
National tech categories:
None (27) · USPC 244/3.23 (6) · USPC 244/97 (4) · USPC 244/17.11 (3) · USPC 244/153R (3) · USPC 416/113 (2) · USPC 244/23R (2) · USPC 244/237 (2) · USPC 244/224 (2) · USPC 244/177 (2) · USPC 244/17.21 (2) · USPC 244/60 (2)
CPCs:
CPC F42B10/30 (6) · CPC Y02E10/74 (5) · CPC F03D3/00 (4) · CPC B64C27/82 (4) · CPC B64C11/006 (4) · CPC B64C11/48 (3) · CPC A63H27/08 (3) · CPC Y10T74/20012 (3) · CPC B64B1/00 (3) · CPC B64C2700/6295 (3)
First filing:
Cites these patents:
Citations from after 1930:
Number of text pages:
Number of diagram pages:

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