Patent US-1909-1042594
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This helicopter has to vertically-acting propellers and one horizontally-acting propeller.
- Inventor location: Boston, Suffolk county, Massachussetts
- Witnesses as shown on the final text page: Frank G. Parker and William Edson
Sources
- Patent 1042594 document and bibliographic info on espacenet
- Patent 1042594 at google patents
| Year filed | 1909 |
|---|---|
| Year granted | 1912 |
| Office | US |
| Patent number | 1042594 |
| Inventors | William E. Pearson |
| Inventor country | US |
| Applicant person | William E. Pearson |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | Flying-machine |
| English title | Flying machine |
| Tech fields | HTA, helicopter, ascension, propulsion, propellers |
| Filing date | 1909/11/22 |
| Full specification filed date | |
| Application number | 1909529480 |
| Grant date | 1912/10/29 |
| Granted? | Yes |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | Yes |
| Serial number | 529480 |
| Patent agent | |
| Assigned to | |
| National tech categories | USPC 244/17.21 |
| IPCs | |
| CPCs | CPC B64C27/006 |
| Family year | 1909 |
| First filing? | Yes |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 47544649 |
| INPADOC family ID | 43911862 |
| Number of text pages | 2 |
| Number of diagram pages | 3 |
| Number of figures | 3 |
| Number of claims | 4 |
