Patent US-1910-977997
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| Year filed | 1909 |
|---|---|
| Year granted | 1910 |
| Office | US |
| Patent number | 977997 |
| Inventors | Edward BERTHOLF |
| Inventor country | US |
| Applicant person | BERTHOLF EDWARD |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Flying-machine |
| English title | Flying-machine |
| Tech fields | Helicopter |
| Filing date | airplane |
| Full specification filed date | hybrid |
| Application number | frame |
| Grant date | propeller |
| Granted? | parachute |
| Publication date | safety |
| Supplementary to patent | wheels |
| Related to aircraft? | rudder |
| Serial number | 1909-07-06 |
| Patent agent | |
| Assigned to | 1909506182 |
| National tech categories | 1910-12-06 |
| IPCs | 1 |
| CPCs | |
| Family year | |
| First filing? | 1 |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | |
| INPADOC family ID | USPC 244/139 |
| Number of text pages | |
| Number of diagram pages | CPC B64C27/006 |
| Number of figures | 1909 |
| Number of claims | 1 |
Sources
- Patent 977997 document and bibliographic info on espacenet
- Patent 977997 at google patents boxy frame with propeller above and propeller in back
Inventor location (imputed by HistPat): Watkins, NY
