Patent FR-1864-64483

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This is a patent of 15 years, purportedly having two additions.

We do have access to two earlier patents by this inventor.

  • Inventor location: Gray, Haute-Saône, France
  • Inventor occupation: doctor, "docteur en médecine", that is, physician

Sources

  • INPI advanced research page ; the original is not available in the case of this patent ; application year and "Gray" and "docteur" yield the "notice" results most effectively.


Year filed 1864
Year granted
Office FR
Patent number 64483
Inventors Louis-Edouard Gourdan-Fromentel
Inventor country FR
Inventor location Gray, Haute-Saône
Applicant person Louis-Edouard Gourdan-Fromentel
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title ballhydre propulseur hydraulique
English title hydraulic thruster
Tech fields propellers, propulsion, LTA
Filing date 1867/09/22
Full specification filed date
Application number
Grant date
Granted? No
Publication date
Supplementary to patent
Related to aircraft?
Serial number
Patent agent
Assigned to
National tech categories FR 2
IPCs
CPCs
Family year 1867
First filing? Yes
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