Patent CA-1880-13781
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Aerostat with main and auxiliary balloons.
- Inventor location: St. Petersburg, Russia
Patent filings in Québec may have interesting relations to French filings. Apraxine's large internationally registered body of work may be all within 1 or 2 patent families, possibly with a Russian ultimate parent.
Source
- Canadian Patent Office Record for 1882, p. 2
- Patent summary at the Canadian Intellectual Property Office site
- Bibliographic info on this patent at CIPO
- Original patent document and bibliography entry on espacenet
- Patent CA13781 on google patents
| Year filed | 1880 |
|---|---|
| Year granted | 1881 |
| Office | CA |
| Patent number | 13781 |
| Inventors | Comte Antoine Apraxine |
| Inventor country | RU |
| Inventor location | St. Petersburg |
| Applicant person | Comte Antoine Apraxine |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Improvements in Aerial Balloons; Perfectionnements dans les ballons |
| English title | Improvements in Aerial Balloons |
| Tech fields | LTA, balloon, aerostat |
| Filing date | 1880-05-25 |
| Full specification filed date | |
| Application number | |
| Grant date | 1881-12-02 |
| Granted? | 1 |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | 1 |
| Serial number | |
| Patent agent | |
| Assigned to | |
| National tech categories | CA 244/28 |
| IPCs | |
| CPCs | |
| Family year | 1880 |
| First filing? | 1 |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | |
| INPADOC family ID | |
| Number of text pages | 10 |
| Number of diagram pages | 3 |
| Number of figures | 7 |
| Number of claims | 5 |
