Patent CA-1881-13782
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Filed simultaneously with Patent CA-1881-13781; deals with some different aspects of an aerostat (parachutes, archimedean screws, frame).
(In terms of a francophone filing in Canada, we are interested somewhat in Québec, and in possible relations to his French filings, and more broadly in the possibility of Apraxine's entire internationally registered body of work possibly being constituted 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 |
---|---|
Year granted | 1881 |
Office | CA |
Patent number | 13782 |
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, parachute, frame |
Filing date | 1881-05-21 |
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 244/27 |
IPCs | |
CPCs | |
Family year | 1881 |
First filing? | 1 |
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 |