Patent CA-1881-13781

From Inventing aviation
Jump to navigation Jump to search

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


Year filed 1881
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