Patent US-1852-10474
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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: Suffolk county, MA (FIPSloc=25025, imputed by HistPat)
Sources
- Patent 10474 document and bibliographic info on espacenet
- Patent 10474 at google patents
| Year filed | 1852 |
|---|---|
| Year granted | 1854 |
| Office | US |
| Patent number | 10474 |
| Inventors | Harry Leach |
| Inventor country | US |
| Inventor location | |
| Applicant person | Harry Leach |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Propeller |
| English title | Marine propeller |
| Tech fields | marine propeller |
| Filing date | 1852-11-02 |
| Full specification filed date | |
| Application number | |
| Grant date | 1854-01-31 |
| Granted? | 1 |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | .5 |
| Serial number | |
| Patent agent | |
| Assigned to | |
| National tech categories | |
| IPCs | |
| CPCs | CPC B63H1/12, CPC B64C11/48 |
| Family year | 1854 |
| First filing? | 1 |
| Cites these patents | |
| Citations from after 1930 | 1 |
| Application ID | 45398961 |
| INPADOC family ID | |
| Number of text pages | 1 |
| Number of diagram pages | 1 |
| Number of figures | 2 |
| Number of claims | 1 |
