Patent FR-1911-438363.15772
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- 1st certificate of addition to the patent registered, 14 mars 1911, for a longitudinal equilibrium apparatus for aircraft
- 1er certificat d'addition au brevet pris, le 14 mars 1911 - the filing date of the parent patent
- This patent seems to cite French patent 27697 from 1911 ; review the text
- Inventor location: département Seine, France (likely Paris)
Sources
- Aero-Manuel 1914
- Original patent document and bibliography entry on espacenet
- on google patents
Patent family descending from Patent FR-1911-438363
- Patent FR-1911-438363 (English title: Devices for longitudinal stability of aeronautical machines, Supplementary to patent: Patent FR-1907-392684 • Patent FR-1908-403726 • Patent FR-1910-428665, National tech categories: FR 6.4)
- Patent DE-1911-323133 (English title: Stabilization device for aircraft, Supplementary to patent: Patent FR-1911-438363, National tech categories: DE 77h.5)
- Patent FR-1911-438363.15772 (English title: Device for automatic longitudinal equilibrium control and indicator for aircraft, Supplementary to patent: Patent FR-1911-438363, National tech categories: FR 6.4)
- Patent HU-1912-60851 (English title: Equipment for maintaining the longitudinal balance of airplanes, Supplementary to patent: Patent FR-1911-438363, National tech categories: HU V/h)
| Year filed | 1911 |
|---|---|
| Year granted | 1912 |
| Office | FR |
| Patent number | 438363.15772 |
| Inventors | Adolphe-François-Joseph Doutre |
| Inventor country | FR |
| Applicant person | Adolphe-François-Joseph Doutre |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | Dispositifs d'équilibrage longitudinal des machines aéronautiques |
| English title | Device for automatic longitudinal equilibrium control and indicator for aircraft |
| Tech fields | airplane, stability, equilibrium, control, instrument, automatic stability |
| Filing date | 1911/06/27 |
| Full specification filed date | |
| Application number | 15772D |
| Grant date | 1912/07/04 |
| Granted? | Yes |
| Publication date | 1912/09/19 |
| Supplementary to patent | Patent FR-1911-438363 |
| Related to aircraft? | Yes |
| Serial number | 438363 |
| Patent agent | Paul Coulomb |
| Assigned to | |
| National tech categories | FR 6.4 |
| IPCs | IPC B64C1/00, IPC B64C17/00 |
| CPCs | CPC B64C17/00, CPC B64C2700/6218 |
| Family year | 1 |
| First filing? | No |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 18726410 |
| INPADOC family ID | 5199722 |
| Number of text pages | 2 |
| Number of diagram pages | 1 |
| Number of figures | 2 |
| Number of claims | 5 |
