Patent US-1909-984270
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| Year filed | 1909 |
|---|---|
| Year granted | 1911 |
| Office | US |
| Patent number | 984270 |
| Inventors | Albert Hugo Friedel |
| Inventor country | US |
| Inventor location | |
| Applicant person | Albert Hugo Friedel |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Flying-machine |
| English title | Flying-machine |
| Tech fields | |
| Filing date | frame |
| Full specification filed date | propeller |
| Application number | stability |
| Grant date | navigation |
| Granted? | 1909-06-23 |
| Publication date | |
| Supplementary to patent | 1909503866 |
| Related to aircraft? | 1911-02-14 |
| Serial number | 1 |
| Patent agent | |
| Assigned to | |
| National tech categories | 1 |
| IPCs | 457569 |
| CPCs | |
| Family year | |
| First filing? | USPC 244/87 |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 1909 |
| INPADOC family ID | 1 |
| Number of text pages | |
| Number of diagram pages | |
| Number of figures | 47414266 |
| Number of claims | 43897812 |
Sources
- https://www.google.com/patents/US984270
- espacenet propellers aligned on opposite sides of middle line, with automatic stabilizer; compressed air reservoir for navigation; similar 4-propellers design as #984269 by same inventor ; 1908/10/13
Inventor location (imputed by HistPat): Baltimore, MD, Baltimore county, MD (FIPSloc=24510)
