Patent FR-1909-418209
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Sources
- Original patent document and bibliography entry on espacenet
- Inventor location: département Seine, France
Patent family descending from Patent FR-1909-418209
- Patent FR-1909-418209 (English title: Aviation propeller apparatus, National tech categories: FR 6.4)
- Patent FR-1909-418209.12997 (English title: Aviation propeller apparatus, Supplementary to patent: Patent FR-1909-418209, National tech categories: FR 6.4)
The invention features a double propeller, with the capacity of setting the individual rotors an different speeds.
While both this patent and its addition share the contemporaneous French patent classification we call FR 6.4, one may note the variation between them in terms of retrospective IPC and CPC designations.
| Year filed | 1909 |
|---|---|
| Year granted | 1910 |
| Office | FR |
| Patent number | 418209 |
| Inventors | |
| Inventor country | FR |
| Applicant person | |
| Applicant firm | Société “Aviator” |
| Applicant type | COMPANY |
| Applicant is inventor? | Yes |
| Original title | Dispositif propulseur pour appareil d'aviation |
| English title | Aviation propeller apparatus |
| Tech fields | Propellers, Airplane, Propulsion, Subsystem, Construction, Design |
| Filing date | 1909/09/21 |
| Full specification filed date | |
| Application number | 418209D |
| Grant date | 1910/09/22 |
| Granted? | Yes |
| Publication date | 1910/12/03 |
| Supplementary to patent | |
| Related to aircraft? | Yes |
| Serial number | |
| Patent agent | L. Chassevent |
| Assigned to | |
| National tech categories | FR 6.4 |
| IPCs | IPC B64D35/04 |
| CPCs | CPC B64D2700/62842, CPC B64D35/04 |
| Family year | 1909 |
| First filing? | Yes |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 19237147 |
| INPADOC family ID | 5197956 |
| Number of text pages | 2 |
| Number of diagram pages | 1 |
| Number of figures | 1 |
| Number of claims | 3 |
