Patent FR-1910-417989
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- Inventor location: Montguyon, département Charente-Inférieure, France
Sources
- Original patent document and bibliography entry on espacenet
- on google patents
Patent family descending from Patent FR-1910-417989
- Patent FR-1910-417989 (English title: Concentric biplane with contrary movements, actually a helicopter, featuring two counter-rotating blades, or sets of blades, National tech categories: FR 6.4)
- Patent FR-1910-417989.13504 (English title: Concentric biplane with contrary movements, actually a helicopter, featuring two counter-rotating blades, or sets of blades, Supplementary to patent: Patent FR-1910-417989, National tech categories: FR 6.4)
- Patent FR-1911-417989.14395 (English title: Concentric biplane with contrary movements, actually a helicopter, featuring two counter-rotating blades, or sets of blades, Supplementary to patent: Patent FR-1910-417989, National tech categories: FR 6.4)
- Patent GB-1911-14926 (English title: Improvements relating to Helicopter Flying-machines, Supplementary to patent: Patent FR-1910-417989)
- Patent GB-1912-13882 (English title: Improvements relating to Helicopter Flying Machines, Supplementary to patent: Patent GB-1911-14926 • Patent FR-1910-417989)
| Year filed | 1910 |
|---|---|
| Year granted | 1910 |
| Office | FR |
| Patent number | 417989 |
| Inventors | Édouard-Jean Bigourdan |
| Inventor country | FR |
| Applicant person | Édouard-Jean Bigourdan |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | Biplan concentrique à mouvements contraires |
| English title | Concentric biplane with contrary movements, actually a helicopter, featuring two counter-rotating blades, or sets of blades |
| Tech fields | design, helicopter, HTA |
| Filing date | 1910/06/25 |
| Full specification filed date | |
| Application number | 417989D |
| Grant date | 1910/09/16 |
| Granted? | Yes |
| Publication date | 1910/11/28 |
| Supplementary to patent | |
| Related to aircraft? | 1 |
| Serial number | |
| Patent agent | None |
| Assigned to | |
| National tech categories | FR 6.4 |
| IPCs | IPC B64C11/00 |
| CPCs | CPC B64C11/005 |
| Family year | 1910 |
| First filing? | Yes |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 19236929 |
| INPADOC family ID | 5198345 |
| Number of text pages | 2 |
| Number of diagram pages | 1 |
| Number of figures | 5 |
| Number of claims | 1 |
