Patent US-1908-1065033
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- Inventor describes self as citizen of Sweden, residing at 1040 Calle Tolsa, city of Mexico, Mexican Republic.
- Witnesses as shown on the first through third diagram pages: L. H. Barlow and W. D. Breyer
- Witnesses as shown on the fourth diagram page: N. M. Down and ...
- Witnesses as shown on the final text page: W. Thompson and G. A. Guerra ; this Thompson is quite possibly W. P. Thompson/William Phillips Thompson ; Guerra is likely a contact reflecting Dufwa's situation in Mexico.
Sources
- Patent 1065033 document and bibliographic info on espacenet
- Patent 1065033 at google patents
| Year filed | 1908 |
|---|---|
| Year granted | 1913 |
| Office | US |
| Patent number | 1065033 |
| Inventors | Frederick William Dufwa |
| Inventor country | MX |
| Inventor location | |
| Applicant person | Frederick William Dufwa |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Device for maintaining the equilibrium of flying-machines |
| English title | Device for maintaining the equilibrium of flying-machines |
| Tech fields | stability, equilibrium |
| Filing date | 1908-08-12 |
| Full specification filed date | |
| Application number | 1908448258 |
| Grant date | 1913-06-17 |
| Granted? | 1 |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | 1 |
| Serial number | 448258 |
| Patent agent | Pennie Goldsborough |
| Assigned to | |
| National tech categories | USPC 244/80 |
| IPCs | IPC B64C17/00 |
| CPCs | CPC B64C17/00 |
| Family year | 1908 |
| First filing? | 1 |
| Cites these patents | |
| Citations from after 1930 | 0 |
| Application ID | 47583129 |
| INPADOC family ID | 43865789 |
| Number of text pages | 5 |
| Number of diagram pages | 4 |
| Number of figures | 13 |
| Number of claims | 20 |
