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 |
