Patent US-1913-1050921
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- Helicopter with sustaining plane below propeller; flaps close on descent
- Inventor location: Corpus Christi, Nueces county, TX (FIPSloc=48355, imputed by HistPat)
Sources
- Patent 1050921 document and bibliographic info on espacenet
- Patent 1050921 at google patents
| Year filed | 1912 |
|---|---|
| Year granted | 1913 |
| Office | US |
| Patent number | 1050921 |
| Inventors | James Darche |
| Inventor country | US |
| Applicant person | James Darche |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | Airship |
| English title | Airship |
| Tech fields | helicopter, propulsion, navigation, car, safety, parachute, flaps, descent, airship |
| Filing date | May 22, 1912 |
| Full specification filed date | |
| Application number | 1912699036 |
| Grant date | January 21, 1913 |
| Granted? | Yes |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | Yes |
| Serial number | 699036 |
| Patent agent | C. A. Snow & Co. |
| Assigned to | |
| National tech categories | USPC 244/17.15, USPC 416/129 |
| IPCs | IPC B64C27/00 |
| CPCs | CPC B64C27/006 |
| Family year | 1912 |
| First filing? | Yes |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 47558871 |
| INPADOC family ID | |
| Number of text pages | 2 |
| Number of diagram pages | 2 |
| Number of figures | 4 |
| Number of claims | 2 |
