Patent FR-1919-495551.21196
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- Tech class CPC B64C3/44: Varying camber of aerofoils/wings
Patent family descending from Patent FR-1918-495551
- Patent FR-1918-495551 (English title: Improvement of airplanes bearing surfaces, Filing date: 1918-05-06, National tech categories: FR 6.4)
- Patent FR-1919-495551.21196 (English title: Improvement of airplanes bearing surfaces, Supplementary to patent: Patent FR-1918-495551, Filing date: 1919-01-31, National tech categories: FR 6.4)
Sources
- Original patent document and bibliography entry on espacenet
- Patent FR21196E on google patents
| Year filed | 1919 |
|---|---|
| Year granted | 1920 |
| Office | FR |
| Patent number | 21196 |
| Inventors | Étienne Royer |
| Inventor country | FR |
| Inventor location | |
| Applicant person | Étienne Royer |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Perfectionnement aux surfaces portantes d'aéroplanes |
| English title | Improvement of airplanes bearing surfaces |
| Tech fields | wings |
| Filing date | 1919-01-31 |
| Full specification filed date | |
| Application number | |
| Grant date | 1920-04-06 |
| Granted? | 1 |
| Publication date | 1920-07-01 |
| Supplementary to patent | Patent FR-1918-495551 |
| Related to aircraft? | 1 |
| Serial number | |
| Patent agent | E. Blétry |
| Assigned to | |
| National tech categories | FR 6.4 |
| IPCs | IPC B64C3/44 |
| CPCs | CPC B64C3/44 |
| Family year | 1918 |
| First filing? | 0 |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | |
| INPADOC family ID | |
| Number of text pages | 2 |
| Number of diagram pages | 1 |
| Number of figures | 2 |
| Number of claims | 2 |
