Patent US-1921-1378112
Jump to navigation
Jump to search
- Tech classification: CPC B64C27/10 Helicopters with two or more rotors arranged coaxially
- Inventor location: citizen of the United States, and a resident of Ringwood Manor, Passaic county, and State of New Jersey
Sources
- Patent 1378112 document and bibliographic info on espacenet
- Patent 1378112 at google patents
| Year filed | 1919 |
|---|---|
| Year granted | 1921 |
| Office | US |
| Patent number | 1378112 |
| Inventors | Peter Cooper Hewitt |
| Inventor country | US |
| Inventor location | |
| Applicant person | Peter Cooper Hewitt |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Flying-machine |
| English title | Flying machine |
| Tech fields | |
| Filing date | 1919-06-14 |
| Full specification filed date | |
| Application number | |
| Grant date | 1921-05-17 |
| Granted? | 1 |
| Publication date | |
| Supplementary to patent | |
| Related to aircraft? | 1 |
| Serial number | |
| Patent agent | |
| Assigned to | |
| National tech categories | |
| IPCs | |
| CPCs | |
| Family year | |
| First filing? | |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | |
| INPADOC family ID | |
| Number of text pages | |
| Number of diagram pages | 2 |
| Number of figures | |
| Number of claims |
