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 |