Patent US-1909-991686
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Planes with "spatulate" shape, angled up down or straight depending on intended change in altitude; two propellers, one of which can be swung between driving position and lifting position
- Tech class CPC B64C29/0033 Aircraft capable of landing or taking-off vertically
- Inventor location: Boston, Suffolk county, MA (FIPSloc=25025, imputed by HistPat)
Sources
- Patent 991686 document and bibliographic info on espacenet
- Patent 991686 at google patents
| Year filed | 1909 |
|---|---|
| Year granted | 1911 |
| Office | US |
| Patent number | 991686 |
| Inventors | Jean M. Allèas |
| Inventor country | US |
| Applicant person | Jean M. Allèas |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Apparatus for aerial navigation |
| English title | Apparatus for aerial navigation |
| Tech fields | airplane, helicopter, hybrid, frame, propeller, wheels, navigation, rudder, stability, airfoil |
| Filing date | 1909-10-21 |
| Full specification filed date | |
| Application number | 1909523757 |
| Grant date | 1911-05-09 |
| Granted? | 1 |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | 1 |
| Serial number | 523757 |
| Patent agent | Crosby Bregon |
| Assigned to | |
| National tech categories | USPC 244/7R |
| IPCs | |
| CPCs | CPC B64C29/0033 |
| Family year | 1909 |
| First filing? | 1 |
| Cites these patents | |
| Citations from after 1930 | 1 |
| Application ID | |
| INPADOC family ID | |
| Number of text pages | 3 |
| Number of diagram pages | 2 |
| Number of figures | 4 |
| Number of claims | 1 |
