Patent FR-1916-502520.22245
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This is an addition to Patent FR-1915-502520, which brevet was filed 1915-11-06.
- Inventor locations: Alexis Beurrier was located within département Charente-Inférieure, now département Charente-Maritime, France, Edmond Bigourdan was located within département Seine-et-Oise and Louis Lacoin was located within département Seine.
- It's tricky to figure out whether Edmond Bigourdan is the same as Edouard Bigourdan or not. They are both listed as patenting with Beurrier, but not with one another.
Patent family descending from Patent FR-1915-502520
- Patent FR-1915-502520 (English title: Improvements in Flying Machines with Revolving Wings, National tech categories: FR 6.4)
- Patent GB-1916-102154 (English title: Improvements in Flying Machines with Revolving Wings, Supplementary to patent: Patent FR-1915-502520)
- Patent FR-1916-502520.22245 (English title: Rotary wing aircraft, Supplementary to patent: Patent FR-1915-502520, National tech categories: FR 6.4)
Sources
- Original patent document and bibliography entry on espacenet
| Year filed | 1916 |
|---|---|
| Year granted | 1920 |
| Office | FR |
| Patent number | 22245 |
| Inventors | Alexis Beurrier, Edmond Bigourdan, Louis Lacoin |
| Inventor country | FR |
| Applicant person | Alexis Beurrier, Edmond Bigourdan, Louis Lacoin |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Avion à voilure tournante |
| English title | Rotary wing aircraft |
| Tech fields | heavier-than-air, helicopter, hybrid, ascension, descent, propellers, airplane |
| Filing date | 1916/11/02 |
| Full specification filed date | |
| Application number | 22245D |
| Grant date | 1920/12/21 |
| Granted? | 1 |
| Publication date | 1921/05/24 |
| Supplementary to patent | Patent FR-1915-502520 |
| Related to aircraft? | 1 |
| Serial number | |
| Patent agent | J. Fayollet |
| Assigned to | |
| National tech categories | FR 6.4 |
| IPCs | IPC B64C27/32 |
| CPCs | CPC B64C2700/6283, CPC B64C27/32 |
| Family year | 1915 |
| First filing? | No |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 18733286 |
| INPADOC family ID | 10244544 |
| Number of text pages | 1 |
| Number of diagram pages | 0 |
| Number of figures | 0 |
| Number of claims | 1 |
