Patent US-1912-1028891
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Multi-masted helicopter
- Inventor location (imputed by HistPat): Dover, Kent county, DE (FIPSloc=10001)
- Tech cats: CPC B64C23/005 Influencing air-flow over aircraft surfaces, by means not elsewhere classified
- supplementary to 932712 -- this is buried in the text though. was the priority date chosen based on filing date or the earlier patent?
Sources
- Patent 1028891 document and bibliographic info on espacenet
- Patent 1028891 at google patents
| Year filed | 1910 |
|---|---|
| Year granted | 1912 |
| Office | US |
| Patent number | 1028891 |
| Inventors | William David Le Fevre |
| Inventor country | US |
| Applicant person | William David Le Fevre |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | Yes |
| Original title | Airship |
| English title | Airship |
| Tech fields | helicopter |
| Filing date | November 2, 1910 |
| Full specification filed date | |
| Application number | 1910590293 |
| Grant date | June 11, 1912 |
| Granted? | Yes |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | Yes |
| Serial number | 590293 |
| Patent agent | |
| Assigned to | |
| National tech categories | USPC 244/6, USPC 244/60 |
| IPCs | |
| CPCs | CPC B64C23/005 |
| Family year | 1910 |
| First filing? | Yes |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | 47521316 |
| INPADOC family ID | 43944678 |
| Number of text pages | 3 |
| Number of diagram pages | 4 |
| Number of figures | 4 |
| Number of claims | 5 |
