Patent GB-1908-17877
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This patent does not appear to refer to any Swedish or Mexican predecessors, but realistically it must be a child patent. We need to trace that, presumably by comparing the diagrams. Patent DE-1908-244821 is a match, filed three days later, and so is Patent CA-1908-115381, filed one month later. This patent is stamped "[Second Edition.]"
- Inventor location: No. 1040, Calle Tolsa, City of Mexico, Mexican Republic
- Inventor occupation: Physician on the Staff of the General Hospital
Sources
- Neilson, 1910, Aeroplane Patents, p76
- Original patent document and bibliography entry on espacenet
- Patent GB190817877A on google patents
| Year filed | 1908 |
|---|---|
| Year granted | 1909 |
| Office | MX |
| Patent number | 17877 |
| Inventors | Frederick William Dufwa |
| Inventor country | MX |
| Inventor location | México, D.F. |
| Applicant person | Frederick William Dufwa |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Improvements relating to flying Machines |
| English title | Improvements relating to flying Machines |
| Tech fields | rudder, HTA, biplane |
| Filing date | 1908-08-25 |
| Full specification filed date | |
| Application number | |
| Grant date | 1909-03-25 |
| Granted? | 1 |
| Publication date | |
| Supplementary to patent | Not identified yet |
| Related to aircraft? | 1 |
| Serial number | |
| Patent agent | Haseltine, Lake & Co. |
| Assigned to | |
| National tech categories | |
| IPCs | |
| CPCs | |
| Family year | 1908 |
| First filing? | 0 |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | |
| INPADOC family ID | |
| Number of text pages | 6 |
| Number of diagram pages | 2 |
| Number of figures | 7 |
| Number of claims | 14 |
