Patent FR-1898-278138.1

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Year filed
Year granted 1898
Office FR
Patent number 278138.1
Inventors Clément Ader
Inventor country FR
Applicant person
Applicant firm
Applicant type
Applicant is inventor? 1
Original title cert d'addition au brevet pris, le 21 mai 1898, pour perfectionnements aux moteurs legers pour l'usage de l'aviation l'aérostation dirigeable, la navigation et l'automobilisme
English title cert of addition to the patent taken, 21 May 1898, for improvements to lightweight motors for airplanes, dirigibles, boats and cars
Tech fields propulsion, navigation, LTA, motors, dirigibles, aerostat, airplane
Filing date
Full specification filed date
Application number
Grant date 1898-06-21
Granted? 1
Publication date
Supplementary to patent Patent FR-1898-278138
Related to aircraft? Yes
Serial number
Patent agent
Assigned to
National tech categories FR 6.3
Family year 1898
First filing?
Cites these patents
Citations from after 1930
Application ID
Number of text pages
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Number of claims


  • BOPI (1898, tome 18) {{esp|FR|278138 espacenet]
  • Inventor location: rue de l'Assomption, 68, Paris