Patent US-1874-150903
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- This invention relates to improvements in the wheel for which Letters Patent were grant ed to me May 21, 1867, No. 65,023
- Tech class: CPC B64C27/54: Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement
- Inventor location: Chicago, Cook county, IL (FIPSloc=17031, imputed by HistPat)
Sources
- Patent 150903 document and bibliographic info on espacenet
- Patent 150903 at google patents
| Year filed | 1873 |
|---|---|
| Year granted | 1874 |
| Office | US |
| Patent number | 150903 |
| Inventors | Elihu Spencer |
| Inventor country | US |
| Inventor location | |
| Applicant person | Elihu Spencer |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Improvement in feathering paddle-wheels |
| English title | Improvement in feathering paddle-wheels |
| Tech fields | paddle-wheels |
| Filing date | September 9, 1873 |
| Full specification filed date | |
| Application number | |
| Grant date | 1874-05-12 |
| Granted? | 1 |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | 1 |
| Serial number | |
| Patent agent | Dodger & Son |
| Assigned to | |
| National tech categories | |
| IPCs | |
| CPCs | CPC B64C27/54 |
| Family year | 1873 |
| First filing? | 1 |
| Cites these patents | Patent US-1867-65023 |
| Citations from after 1930 | 2 |
| Application ID | 45814607 |
| INPADOC family ID | |
| Number of text pages | 2 |
| Number of diagram pages | 1 |
| Number of figures | 4 |
| Number of claims | 3 |
