Patent AT-1913-60737

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Same diagrams as in his other patents

  • Patent term begins not with filing date but later, on April 1, 1913. Patent doc doesn't explain how this date was set.
  • Inventor location: Wilmington, North Carolina, US


Year filed 1911
Year granted 1913
Office AT
Patent number 60737
Inventors David Palmgren
Inventor country US
Applicant person David Palmgren
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Flugmaschine
English title Flying machine
Tech fields aerial navigation
Filing date 1911-01-21
Full specification filed date
Application number
Grant date 1913-08-25
Granted? Yes
Publication date
Supplementary to patent
Related to aircraft? Yes
Serial number
Patent agent
Assigned to
National tech categories AT 77d
IPCs IPC B64C3/10
Family year 1911
First filing? 0
Number of citations
Cited by
Application ID
Number of text pages 4
Number of diagram pages 1
Number of figures 8
Number of claims 5