Patent FR-1911-431571
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- Tech class: CPC B64C27/10: Helicopters with two or more rotors arranged coaxially
- Inventor location:
Patent family descending from Patent US-1911-1084806
- Patent US-1911-1084806 (English title: Aerial motor-vehicle, National tech categories: USPC 244/17.15)
- Patent FR-1911-431571 (English title: Helicopter, Supplementary to patent: Patent US-1911-1084806, National tech categories: FR 6.4)
Sources
- Original patent document and bibliography entry on espacenet
- on google patents
| Year filed | 1911 |
|---|---|
| Year granted | 1911 |
| Office | FR |
| Patent number | 431571 |
| Inventors | Henry Bertram Lister |
| Inventor country | US |
| Applicant person | Henry Bertram Lister |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Hélicoptère |
| English title | Helicopter |
| Tech fields | helicopter |
| Filing date | 1911-05-06 |
| Full specification filed date | |
| Application number | 431571D |
| Grant date | 1911-09-16 |
| Granted? | 1 |
| Publication date | 1911-11-14 |
| Supplementary to patent | Patent US-1911-1084806 |
| Related to aircraft? | 1 |
| Serial number | |
| Patent agent | Ed. Wolf |
| Assigned to | |
| National tech categories | FR 6.4 |
| IPCs | IPC B64C27/04 |
| CPCs | CPC B64C2700/6281, CPC B64C27/10 |
| Family year | 1911 |
| First filing? | 0 |
| Cites these patents | |
| Citations from after 1930 | 0 |
| Application ID | 19250222 |
| INPADOC family ID | 5322278 |
| Number of text pages | 3 |
| Number of diagram pages | 1 |
| Number of figures | 7 |
| Number of claims | 1 |
