Patent US-1920-1364580

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  • Inventor location: subject of the King of Hungary, and resident of Long Island City, Queens county, New York
  • Tech class CPC B64C23/005 Influencing air-flow over aircraft surfaces, not otherwise provided for by other means not covered by groups B64C23/02 - B64C23/08, e.g. by electric charges, magnetic panels, piezoelectric elements, static charges or ultrasounds
  • "Improves on" earlier invention patented as 1179554
  • Useful on aircraft "particularly of the airship type", but not exclusively LTA
  • inventor signed june 5 and it was recorded as filed on June 10

Sources


Year filed 1920
Year granted 1921
Office US
Patent number 1364580
Inventors Paul Petres
Inventor country US
Applicant person Paul Petres
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Twin aeroplane-propeller
English title Twin aeroplane-propeller
Tech fields propeller, construction, dirigible
Filing date 1920-06-10
Full specification filed date
Application number
Grant date 1921-01-04
Granted? 1
Publication date
Supplementary to patent
Related to aircraft? 1
Serial number 387816
Patent agent Harry Jacobson
Assigned to
National tech categories
IPCs IPC B64C23/00
CPCs CPC B64C23/005
Family year 1916
First filing? 1
Cites these patents
Citations from after 1930 2
Application ID 47942230
INPADOC family ID 44435924
Number of text pages 2
Number of diagram pages 2
Number of figures 5
Number of claims 2