Patent CA-1881-13781
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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
Year filed | 1881 |
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Year granted | 1882 |
Office | CA |
Patent number | 13781 |
Inventors | Comte Antoine Apraxine |
Inventor country | RU |
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 |
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 | |
First filing? | |
Cites these patents | |
Citations from after 1930 | |
Application ID | |
INPADOC family ID | |
Number of text pages | |
Number of diagram pages | |
Number of figures | |
Number of claims | 5 |