Patent US-1876-173676

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Date on the patent doc statement by the inventor is January 24, 1876. It's recorded as having been filed on Feb 9th.

  • Inventor location: Chicago, IL (FIPSloc=17031)

Patent categories:

  • CPC F03D80/00 Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
  • CPC B64C11/346 Blade pitch-changing mechanisms actuated by the centrifugal force or the aerodynamic drag acting on auxiliary masses or surfaces
  • CPC Y02E10/72 Wind turbines with rotation axis in wind direction

Sources


Year filed
Year granted 1876
Office US
Patent number 173676
Inventors Henry A. Sawyer
Inventor country US
Applicant person Henry A. Sawyer
Applicant firm
Applicant type INDIV
Applicant is inventor? Yes
Original title Improvement in windmills
English title Improvement in windmills
Tech fields Windmill
Filing date January 24, 1876
Full specification filed date
Application number
Grant date February 15, 1876
Granted? Yes
Publication date
Supplementary to patent
Related to aircraft?
Serial number
Patent agent
Assigned to
National tech categories USPC 416/139
IPCs IPC B64C11/00
CPCs CPC F03D11/00, CPC B64C11/346, CPC Y02E10/722
Family year 1876
First filing? Yes
Cites these patents
Citations from after 1930
Application ID 45853894
INPADOC family ID
Number of text pages 2
Number of diagram pages 1
Number of figures 5
Number of claims 6