Patent US-1920-1517289
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- Tech class CPC B64C11/36: Blade pitch-changing mechanisms mechanical non-automatic ; CPC Y10T74/19051: Single driven plural drives ; CPC Y10T74/20012: Multiple controlled elements
Sources
- Patent 1517289 document and bibliographic info on espacenet
- Patent 1517289 at google patents
| Year filed | 1920 |
|---|---|
| Year granted | 1924 |
| Office | FR |
| Patent number | 1517289 |
| Inventors | Seth Hart, Robert Ingersoll Eustis |
| Inventor country | US |
| Inventor location | Los Angeles |
| Applicant person | Seth Hart, Robert Ingersoll Eustis |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Airplane |
| English title | Airplane |
| Tech fields | propeller |
| Filing date | 1920-05-17 |
| Full specification filed date | |
| Application number | |
| Grant date | 1924-12-02 |
| Granted? | 1 |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | 1 |
| Serial number | 381867 |
| Patent agent | Chappell Earl |
| Assigned to | |
| National tech categories | |
| IPCs | IPC B64C11/36 |
| CPCs | CPC B64C11/36, CPC Y10T74/19051, CPC Y10T74/20012 |
| Family year | 1920 |
| First filing? | 1 |
| Cites these patents | |
| Citations from after 1930 | 1 |
| Application ID | |
| INPADOC family ID | |
| Number of text pages | 4 |
| Number of diagram pages | 3 |
| Number of figures | 8 |
| Number of claims | 9 |
