Patent FR-1845-719

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Inventor location: Paris, passage du Saumon, hôtel des Bains, Seine

One of our earlier notes refers to Grant date=October 10, 1845. Was that INPI's advanced research page? The CdB gives January and March dates which are used below now. The March date is the date of "delivrance".[1]


  1. CdB, for 1845, published 1846, page 2 (at Hathitrust, scanned from NYC public library)

Year filed 1845
Year granted
Office FR
Patent number 719
Inventors Cossus, Martin, Delaire, Lenert
Inventor country FR
Applicant person
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Système de direction des aérostats d'un point donné à un point donné
English title Steering system for aerostats from a given point to a given point
Tech fields navigation, LTA
Filing date January 10, 1845
Full specification filed date
Application number
Grant date March 22, 1845
Granted? Yes
Publication date
Supplementary to patent
Related to aircraft? Yes
Serial number
Patent agent
Assigned to
National tech categories
Family year 1845
First filing? Yes
Cites these patents
Citations from after 1930
Application ID
Number of text pages
Number of diagram pages
Number of figures
Number of claims