Patent US-1923-1472148
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- Inventor location: Washington, DC (FIPSloc=11001, imputed by HistPat)
- Patent agent=Sturtevant & Mason
Sources
- Patent 1472148 document and bibliographic info on espacenet
- Patent 1472148 at google patents
| Year filed | 1918 |
|---|---|
| Year granted | 1923 |
| Office | US |
| Patent number | 1472148 |
| Inventors | Emile Berliner |
| Inventor country | US |
| Applicant person | Emile Berliner |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | Helicopter |
| English title | Helicopter |
| Tech fields | helicopter |
| Filing date | October 4, 1918 |
| Full specification filed date | |
| Application number | 25684318 |
| Grant date | October 30, 1923 |
| Granted? | Yes |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | Yes |
| Serial number | |
| Patent agent | |
| Assigned to | |
| National tech categories | USPC 244/17.21, USPC 244/17.19 |
| IPCs | IPC B64C27/82, IPC F24B1/20, IPC B64C27/00, IPC F24B1/00 |
| CPCs | CPC F24B1/202, CPC B64C27/82 |
| Family year | 1918 |
| First filing? | Yes |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 49063008 |
| INPADOC family ID | 44616719 |
| Number of text pages | 2 |
| Number of diagram pages | 1 |
| Number of figures | 3 |
| Number of claims | 2 |
