Patent FR-1916-502520.22245

From Inventing aviation
Jump to navigation Jump to search

This is an addition to Patent FR-1915-502520, which brevet was filed 1915-11-06.

  • Inventor locations: Alexis Beurrier was located within Charente-Inférieure; now département Charente-Maritime, France, Edmond Bigourdan was located within département Seine-et-Oise and Louis Lacoin was located within département Seine.
  • It's tricky to figure out whether Edmond Bigourdan is the same as Edouard Bigourdan or not. They are both listed as patenting with Beurrier, as well as with Lacoin, but not with one another. We are leaning to an extreme likelihood that this Edmond Bigourdan is Édouard-Jean Bigourdan.

Sources

Patent family descending from Patent FR-1915-502520


Year filed 1916
Year granted 1920
Office FR
Patent number 22245
Inventors Alexis Beurrier, Édouard-Jean Bigourdan, Louis Lacoin
Inventor country FR
Inventor location
Applicant person Alexis Beurrier, Edmond Bigourdan, Louis Lacoin
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Avion à voilure tournante
English title Rotary wing aircraft
Tech fields heavier-than-air, helicopter, hybrid, ascension, descent, propellers, airplane
Filing date 1916/11/02
Full specification filed date
Application number 22245D
Grant date 1920/12/21
Granted? Yes
Publication date 1921/05/24
Supplementary to patent Patent FR-1915-502520
Related to aircraft? 1
Serial number
Patent agent J. Fayollet
Assigned to
National tech categories FR 6.4
IPCs IPC B64C27/32
CPCs CPC B64C2700/6283, CPC B64C27/32
Family year 1915
First filing? No
Cites these patents
Citations from after 1930
Application ID 18733286
INPADOC family ID 10244544
Number of text pages 1
Number of diagram pages 0
Number of figures 0
Number of claims 1