Difference between revisions of "Patent FR-1919-491223.20842"
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=== Sources === | === Sources === | ||
* [http://worldwide.espacenet.com/publicationDetails/biblio?FT=D&CC=FR&NR=20842E espacenet entry] | * [http://worldwide.espacenet.com/publicationDetails/biblio?FT=D&CC=FR&NR=20842E espacenet entry] |
Revision as of 19:44, 11 March 2019
This is a cert d'addition.
Sources
- espacenet entry
- Patent doc at espacenet
Year filed | 1916 |
---|---|
Year granted | 1919 |
Office | FR |
Patent number | 20842 |
Inventors | Jean-Marie-Stephen Graf |
Inventor country | FR |
Applicant person | Jean-Marie-Stephen Graf |
Applicant firm | |
Applicant type | INDIV |
Applicant is inventor? | Yes |
Original title | Hydroaéroplane incapotable |
English title | hydroplane |
Tech fields | hydroplane |
Filing date | December 13, 1916 |
Full specification filed date | |
Application number | 20842D |
Grant date | July 22, 1919 |
Granted? | Yes |
Publication date | |
Supplementary to patent | Patent FR-1919-491223 |
Related to aircraft? | Yes |
Serial number | |
Patent agent | |
Assigned to | |
National tech categories | FR 6.4 |
IPCs | IPC B64C17/00 |
CPCs | CPC B64C17/00, CPC B64C2700/6212 |
Family year | 1915 |
First filing? | No |
Cites these patents | |
Citations from after 1930 | |
Application ID | 18731905 |
INPADOC family ID | 5202823 |
Number of text pages | 2 |
Number of diagram pages | |
Number of figures | |
Number of claims | 2 |