Patent US-1837-326

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  • Paddle-wheels
  • CPC categories were messed up somehow. Source data error
  • HistPat yr=1801
  • Inventor location (imputed by HistPat): Albany, Albany county, NY (FIPSloc=36001), Anne Arundel county, MD (FIPSloc=24003)
  • Tech classes: B64C27/54 Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement, Y10S376/90 Particular material or material shapes for fission reactors
  • It's possible there was a drawing or a model. The USPO investigated and reported in 1915 that they couldn't find any. The report is Finis D. Morris, chief of USPO Division E, on May 29, 1915, which is in our early aero period.

Sources


Year filed
Year granted 1837
Office US
Patent number 326
Inventors William A. Douglas
Inventor country US
Inventor location
Applicant person William A. Douglas
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Mode of constructing paddle-wheels for propelling steam and other boats
English title Mode of constructing paddle-wheels for propelling steam and other boats
Tech fields marine, paddle-wheels
Filing date July 3, 1837
Full specification filed date
Application number
Grant date July 31, 1837
Granted? 1
Publication date
Supplementary to patent
Related to aircraft? .5
Serial number
Patent agent
Assigned to
National tech categories
IPCs
CPCs CPC Y10S376/90, CPC B64C27/54
Family year 1837
First filing? 1
Cites these patents
Citations from after 1930 4
Application ID 45381258
INPADOC family ID
Number of text pages 1
Number of diagram pages 0
Number of figures 0
Number of claims 1