Patent US-1909-984270
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Propellers aligned on opposite sides of middle line, with automatic stabilizer; compressed air reservoir for navigation; similar 4-propellers design as Patent US-1908-984269 by same inventor ; 1908/10/13
Inventor location: Baltimore city, Maryland
Sources
- Patent 984270 document and bibliographic info on espacenet
- Patent 984270 at google patents
| Year filed | 1909 |
|---|---|
| Year granted | 1911 |
| Office | US |
| Patent number | 984270 |
| Inventors | Albert Hugo Friedel |
| Inventor country | US |
| Applicant person | Albert Hugo Friedel |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | Flying-machine |
| English title | Flying-machine |
| Tech fields | helicopter, frame, propeller, stability, navigation, automatic stability |
| Filing date | June 23, 1909 |
| Full specification filed date | |
| Application number | 1909503866 |
| Grant date | February 11, 1911 |
| Granted? | Yes |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | Yes |
| Serial number | 503866 |
| Patent agent | R. S. & A. B. Lacey |
| Assigned to | |
| National tech categories | |
| IPCs | |
| CPCs | CPC B64C13/00 |
| Family year | 1909 |
| First filing? | Yes |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 47414266 |
| INPADOC family ID | 43897812 |
| Number of text pages | 5 |
| Number of diagram pages | 3 |
| Number of figures | |
| Number of claims |
