Patent FR-1918-493993
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Supposedly the american patent is the parent, but actually this French patent seems to have been filed first.
- Tech class: CPC B64C3/187: Ribs
- Inventor location:
Sources
- Original patent document and bibliography entry on espacenet
- on google patents
Year filed | 1918 |
---|---|
Year granted | 1919 |
Office | FR |
Patent number | 493993 |
Inventors | John William Rapp |
Inventor country | US |
Applicant person | John William Rapp |
Applicant firm | |
Applicant type | INDIV |
Applicant is inventor? | 1 |
Original title | Perfectionnements dans la construction des nervures pour ailes et autres surfaces d'aéroplanes |
English title | Improvements in the construction of ribs for wings and other surfaces of airplanes |
Tech fields | ribs, spars |
Filing date | 1918-12-18 |
Full specification filed date | |
Application number | 493993D |
Grant date | 1919-05-17 |
Granted? | 1 |
Publication date | 1919-08-27 |
Supplementary to patent | Patent US-1918-12-19 |
Related to aircraft? | 1 |
Serial number | |
Patent agent | Lavoix et Mosès |
Assigned to | |
National tech categories | FR 6.4 |
IPCs | IPC B64C3/18 |
CPCs | CPC B64C3/187 |
Family year | 1918 |
First filing? | 1 |
Cites these patents | |
Citations from after 1930 | 1 |
Application ID | 19311169 |
INPADOC family ID | 5374663 |
Number of text pages | 2 |
Number of diagram pages | 1 |
Number of figures | 5 |
Number of claims | 1 |