Patent US-1877-200951
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- Inventor location: New York county, NY (FIPSloc=36061, imputed by HistPat)
- Tech class CPC B64C11/00: Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- Half assigned to Ritterband
- Strengthening of propeller blades in water; no mention of aero application
Sources
- Patent 200951 document and bibliographic info on espacenet
- Patent 200951 at google patents
Year filed | 1877 |
---|---|
Year granted | 1878 |
Office | US |
Patent number | 200951 |
Inventors | Simon Tragheim |
Inventor country | US |
Inventor location | |
Applicant person | Simon Tragheim |
Applicant firm | |
Applicant type | INDIV |
Applicant is inventor? | 1 |
Original title | Improvement in screw-propellers |
English title | Improvement in screw-propellers |
Tech fields | marine propellers |
Filing date | 1877-09-29 |
Full specification filed date | |
Application number | |
Grant date | 1878-03-05 |
Granted? | 1 |
Publication date | |
Supplementary to patent | |
Related to aircraft? | 0.5 |
Serial number | 200951 |
Patent agent | |
Assigned to | David S. Ritterband |
National tech categories | |
IPCs | |
CPCs | CPC F01D5/06, CPC B64C11/00 |
Family year | 1878 |
First filing? | 1 |
Cites these patents | |
Citations from after 1930 | 1 |
Application ID | 45900640 |
INPADOC family ID | |
Number of text pages | 1 |
Number of diagram pages | 1 |
Number of figures | 3 |
Number of claims | 3 |