Patent DE-1902-141656
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- Cited by Hofmann's later patent: Patent DE-1905-175477
- Inventor location: Berlin
Patent family descending from Patent DE-1902-141656
- Patent DE-1902-141656 (English title: screw propeller, National tech categories: DE 65a)
- Patent DE-1905-175477 (English title: Improvement of screw propellers, Supplementary to patent: Patent DE-1902-141656, National tech categories: DE 77h.6 • DE 62c.1)
Sources
- Original patent document and Bibliographic info at DPMA
- Original patent document and bibliography entry at espacenet international:
| Year filed | 1902 |
|---|---|
| Year granted | 1903 |
| Office | DE |
| Patent number | 141656 |
| Inventors | J. Hofmann |
| Inventor country | DE |
| Applicant person | J. Hofmann |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | Schaubenpropeller |
| English title | screw propeller |
| Tech fields | propeller, propulsion |
| Filing date | June 7, 1902 |
| Full specification filed date | |
| Application number | |
| Grant date | June 12, 1903 |
| Granted? | Yes |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | Yes |
| Serial number | |
| Patent agent | |
| Assigned to | |
| National tech categories | DE 65a |
| IPCs | IPC B63H1/12 |
| CPCs | CPC B63H1/20, CPC B63H1/26, CPC B64C11/10, CPC B64C11/22, CPCB64C11/48, CPC B63H2005/103 |
| Family year | 1902 |
| First filing? | Yes |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | |
| INPADOC family ID | |
| Number of text pages | 1 |
| Number of diagram pages | 1 |
| Number of figures | 3 |
| Number of claims | 1 |
