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


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