Patent FR-1911-429645
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Helicopter + aeroplane. Two propellers above the fuselage.
Sources
- Original patent document and bibliography entry on espacenet
- Inventor location: département Seine, France
Patent family descending from Patent FR-1911-429645
- Patent FR-1911-429645 (English title: Improvements to aeroplanes, actually an airplane-helicopter hybrid, National tech categories: FR 6.4)
- Patent FR-1912-429645.15915 (English title: Improvements in airplanes, actually an airplane-helicopter hybrid, Supplementary to patent: Patent FR-1911-429645, National tech categories: FR 6.4)
| Year filed | 1911 |
|---|---|
| Year granted | 1911 |
| Office | FR |
| Patent number | 429645 |
| Inventors | Alvaro Da Cunha |
| Inventor country | FR |
| Applicant person | Alvaro Da Cunha |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | Perfectionnements aux aéroplanes |
| English title | Improvements to aeroplanes, actually an airplane-helicopter hybrid |
| Tech fields | airplane, helicopter, hybrid, heavier-than-air |
| Filing date | 1911/05/12 |
| Full specification filed date | |
| Application number | 429645D |
| Grant date | 1911/07/22 |
| Granted? | Yes |
| Publication date | 1911/09/27 |
| Supplementary to patent | |
| Related to aircraft? | Yes |
| Serial number | |
| Patent agent | Paul Caquet |
| Assigned to | |
| National tech categories | FR 6.4 |
| IPCs | IPC B64C23/00 |
| CPCs | CPC B64C2700/6274, CPC B64C23/005 |
| Family year | 1911 |
| First filing? | Yes |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 19248339 |
| INPADOC family ID | 5199813 |
| Number of text pages | 2 |
| Number of diagram pages | 2 |
| Number of figures | 4 |
| Number of claims | 3 |
