Patent GB-1913-5223
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- Tech class CPC B64C27/20: Rotorcraft characterised by having shrouded rotors, e.g. flying platforms
- Inventor location: 9 Gray's Inn Square, County of London ; Civil Engineer
Sources
| Year filed | 1913 |
|---|---|
| Year granted | 1913 |
| Office | GB |
| Patent number | 5223 |
| Inventors | James Robertson Porter |
| Inventor country | GB |
| Inventor location | |
| Applicant person | James Robertson Porter |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Improvements in the Construction of Aeronautical Machines |
| English title | Improvements in the Construction of Aeronautical Machines |
| Tech fields | construction |
| Filing date | 1913-03-01 |
| Full specification filed date | 1913-09-01 |
| Application number | 191305223D |
| Grant date | 1913-12-11 |
| Granted? | 1 |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | 1 |
| Serial number | |
| Patent agent | Arthur E. Edwards |
| Assigned to | |
| National tech categories | |
| IPCs | IPC B64C27/20, IPC B64C29/00 |
| CPCs | CPC B64C27/20 |
| Family year | 1913 |
| First filing? | 1 |
| Cites these patents | Patent GB-1912-5966, Patent GB-1912-15735 |
| Citations from after 1930 | 1 |
| Application ID | 23647564 |
| INPADOC family ID | 11133897 |
| Number of text pages | 3 |
| Number of diagram pages | 1 |
| Number of figures | 1 |
| Number of claims | 3 |
