Patent DE-1902-141656
- 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 | Joseph Hofmann |
Inventor country | DE |
Applicant person | |
Applicant firm | Joseph Hofmann |
Applicant type | INDIV |
Applicant is inventor? | Yes |
Original title | Schaubenpropeller |
English title | screw propeller |
Tech fields | propulsion, Propellers |
Filing date | 1902/06/07 |
Full specification filed date | |
Application number | |
Grant date | 1903/06/12 |
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 |