Patent FR-1893-226957

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BOPI info pertinent to 1893

(This is possibly Frederick James Hargreaves.)


  • Bulletin(s) Officiel De La Propriété Industrielle (1893, tome 13)
  • Inventor location:

Year filed
Year granted 1893
Office FR
Patent number 226957
Inventors Hargreaves
Inventor country GB
Applicant person Hargreaves
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Perfectionnements aux ceintures de sauvetage
English title Improvements to safety belts
Tech fields safety
Filing date
Full specification filed date
Application number
Grant date January 6, 1893
Granted? Yes
Publication date
Supplementary to patent
Related to aircraft? Partially
Serial number
Patent agent Dumas
Assigned to
National tech categories FR 6.3
Family year
First filing? No
Cites these patents
Citations from after 1930
Application ID
Number of text pages
Number of diagram pages
Number of figures
Number of claims