Patent FR-1912-415884.15536
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This is an addition to Patent FR-1910-415884, which brevet was filed 1910-05-12. It also gives the British filing priority date 1911-03-01, that is, the filing date of Patent GB-1911-5162, this latter being an addition to Patent GB-1909-12556. Thus we have neatly analogous treatment of additions within the respective national systems.
Sources
- Original patent document and bibliography entry on espacenet
- Inventor location: England
| Year filed | 1912 |
|---|---|
| Year granted | 1912 |
| Office | FR |
| Patent number | 15536 |
| Inventors | Thomas Augustus Dring |
| Inventor country | GB |
| Applicant person | Thomas Augustus Dring |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | Perfectionnements aux appareils d'aviation |
| English title | Aircraft |
| Tech fields | helicopter, propulsion, propeller, aerodynamics |
| Filing date | 1912/02/29 |
| Full specification filed date | |
| Application number | 15536D |
| Grant date | 1912/05/14 |
| Granted? | Yes |
| Publication date | 1912/07/25 |
| Supplementary to patent | Patent FR-1910-415884, Patent GB-1911-5162, Patent GB-1909-12556 |
| Related to aircraft? | Yes |
| Serial number | |
| Patent agent | Charles de Mosenthal |
| Assigned to | |
| National tech categories | FR 6.4 |
| IPCs | IPC B64C11/00 |
| CPCs | CPC B64C11/006 |
| Family year | 1909 |
| First filing? | No |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 18726135 |
| INPADOC family ID | 5199579 |
| Number of text pages | 3 |
| Number of diagram pages | 1 |
| Number of figures | 5 |
| Number of claims | 1 |
