Patent FR-1911-427404
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- Inventor location: England
Sources
- Original patent document and bibliography entry on espacenet
Patent family descending from Patent GB-1910-6416
- Patent GB-1910-6416 (English title: Spiral direct lift for aeroplanes)
- Patent FR-1911-427404 (English title: Spiral direct lift for aeroplanes, Supplementary to patent: Patent GB-1910-6416, National tech categories: FR 6.4)
| Year filed | 1911 |
|---|---|
| Year granted | 1911 |
| Office | FR |
| Patent number | 427404 |
| Inventors | John Llewelyn Evans |
| Inventor country | GB |
| Applicant person | John Llewelyn Evans |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | Elévateur direct en spirale pour aéroplanes |
| English title | Spiral direct lift for aeroplanes |
| Tech fields | elevator, control, vertical lift |
| Filing date | March 15, 1911 |
| Full specification filed date | |
| Application number | 427404D |
| Grant date | May 27, 1911 |
| Granted? | Yes |
| Publication date | August 3, 1911 |
| Supplementary to patent | Patent GB-1910-6416 |
| Related to aircraft? | Yes |
| Serial number | |
| Patent agent | Matray frères et Cie |
| Assigned to | |
| National tech categories | FR 6.4 |
| IPCs | IPC B64C11/46 |
| CPCs | CPC B64C11/46 |
| Family year | 1910 |
| First filing? | Yes |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 19246139 |
| INPADOC family ID | 5318748 |
| Number of text pages | 2 |
| Number of diagram pages | 1 |
| Number of figures | 2 |
| Number of claims | 1 |
