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 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, as well as with Lacoin, but not with one another. We are leaning to an extreme likelihood that this Edmond Bigourdan is Édouard-Jean Bigourdan.
Sources
- Original patent document and bibliography entry on espacenet
- on google patents
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-1915-102154 (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)
- Patent US-1917-1350982 (English title: Flying-machine with revolving wings, Supplementary to patent: Patent FR-1915-502520, National tech categories: USPC 416/115 • USPC 416/159 • USPC 416/130)
| Year filed | 1916 |
|---|---|
| Year granted | 1920 |
| Office | FR |
| Patent number | 22245 |
| Inventors | Alexis Beurrier, Édouard-Jean Bigourdan, Louis Lacoin |
| Inventor country | FR |
| Inventor location | |
| Applicant person | Alexis Beurrier, Edmond Bigourdan, Louis Lacoin |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| 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? | Yes |
| 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 |
