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
- Patent 1364580 document and bibliographic info on espacenet
- Patent 1364580 at google patents
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 |