Patent FR-1918-500109
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Some sources identify the grant year as 1920 but it seems to be 1919, and the publication year is 1920.
This patent makes reference to the American priority date 1918-09-17.Patent US-1918-09-17 Alfredo Guillermo Leigh
- Inventor location: Santiago, Chile; he moves to the US at some point however
Sources
- Original patent document and bibliography entry on espacenet
- on google patents
| Year filed | 1918 |
|---|---|
| Year granted | 1919 |
| Office | FR |
| Patent number | 500109 |
| Inventors | Alfredo Guillermo Leigh |
| Inventor country | CL |
| Applicant person | Alfredo Guillermo Leigh |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | Perfectionnements dans les aéroplanes |
| English title | Improvements to aeroplanes |
| Tech fields | airplane, wings, sustentation, aileron, aerodynamics, stability, automatic stability |
| Filing date | 1918/11/21 |
| Full specification filed date | |
| Application number | 500109D |
| Grant date | 1919/12/08 |
| Granted? | Yes |
| Publication date | 1920/03/03 |
| Supplementary to patent | Patent US-1918-09-17 Alfredo Guillermo Leigh |
| Related to aircraft? | Yes |
| Serial number | |
| Patent agent | E. Wattier |
| Assigned to | |
| National tech categories | FR 6.4 |
| IPCs | IPC B64C3/42 |
| CPCs | CPC B64C3/42 |
| Family year | 1918 |
| First filing? | No |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 19317161 |
| INPADOC family ID | 5379960 |
| Number of text pages | 2 |
| Number of diagram pages | 1 |
| Number of figures | 8 |
| Number of claims | 4 |
