Patent US-1865-51295

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  • Tech class CPC B64C11/48: Units of two or more coaxial propellers, CPC B63H1/12: Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
  • Inventor location: Chicago, Cook county, IL (FIPSloc=17031) (imputed by HistPat)

Sources


Year filed 1865
Year granted 1865
Office US
Patent number 51295
Inventors Levi H. Colborn
Inventor country US
Applicant person Levi H. Colborn
Applicant firm
Applicant type INDIV
Applicant is inventor? 1
Original title Improved screw-propeller
English title Improved screw-propeller
Tech fields propeller
Filing date
Full specification filed date
Application number
Grant date 1865-12-05
Granted? 1
Publication date
Supplementary to patent
Related to aircraft? 1
Serial number
Patent agent
Assigned to
National tech categories
IPCs
CPCs CPC B64C11/48, CPC B63H1/12
Family year 1865
First filing? 1
Cites these patents
Citations from after 1930 2
Application ID 45481958
INPADOC family ID
Number of text pages 2
Number of diagram pages 2
Number of figures 2
Number of claims 3