Patent CA-1920-224422
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For filing date, see handwriting on diagrams page
- Occupation: "Gentleman"
Patent family descending from Patent US-1917-1344496
- Patent US-1917-1344496 (English title: Aerial propeller, Filing date: 1917-10-06)
- Patent CA-1922-224422 (English title: Aerial propeller, Supplementary to patent: Patent US-1917-1344496, Filing date: 1920-11-29)
- Patent FR-1921-530413 (English title: Aerial propeller, Supplementary to patent: Patent US-1917-1344496, Filing date: 1921-01-31, National tech categories: FR 6.4)
Sources
- Bibliographic info on this patent at CIPO
- Original patent document and bibliography entry on espacenet
- Patent CA224422 on google patents
| Year filed | 1920 |
|---|---|
| Year granted | 1922 |
| Office | CA |
| Patent number | 224422 |
| Inventors | Albert L. Flattum |
| Inventor country | US |
| Inventor location | Spokane, Washington |
| Applicant person | Albert L. Flattum |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Aerial propeller |
| English title | Aerial propeller |
| Tech fields | Aerial propeller |
| Filing date | 1920-11-29 |
| Full specification filed date | |
| Application number | |
| Grant date | 1922-10-03 |
| Granted? | 1 |
| Publication date | |
| Supplementary to patent | Patent US-1917-1344496 |
| Related to aircraft? | 1 |
| Serial number | |
| Patent agent | Victor J. Evans |
| Assigned to | |
| National tech categories | |
| IPCs | |
| CPCs | |
| Family year | 1917 |
| First filing? | 0 |
| Cites these patents | |
| Citations from after 1930 | 1 |
| Application ID | |
| INPADOC family ID | |
| Number of text pages | 3 |
| Number of diagram pages | 1 |
| Number of figures | 2 |
| Number of claims | 2 |
