Patent AT-1909-48421
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This patent is substantially the same as Patent GB-1912-25939 and Patent FR-1912-449881, among others. Patent HU-1909-47342 may be the earliest filed. We have found little or nothing in the way of specific international patent references within this grouping. Patent FR-1909-401272 is also closely connected to these developments.
Sources
- Original patent document and bibliography entry on espacenet
- Inventor location: Fürstenberg, Germany
Patent family descending from Patent AT-1909-48421
- Patent AT-1909-48421 (English title: Propeller of the variety in which the blades are spiralled along the shaft, National tech categories: AT 77d)
- Patent HU-1909-47342 (English title: Aircraft propeller, Supplementary to patent: Patent AT-1909-48421, National tech categories: HU V/h)
- Patent FR-1909-401272 (English title: Propeller for airships, Supplementary to patent: Patent AT-1909-48421, National tech categories: FR 6.4)
- Patent FR-1912-449881 (English title: Winged aviation propeller with adjustable tilt angle, Supplementary to patent: Patent AT-1909-48421, National tech categories: FR 6.4)
- Patent GB-1912-25939 (English title: Improvements in or relating to Aerial Propellers, Supplementary to patent: Patent AT-1909-48421)
| Year filed | 1909 |
|---|---|
| Year granted | 1911 |
| Office | AT |
| Patent number | 48421 |
| Inventors | Heinrich Mack |
| Inventor country | DE |
| Applicant person | Heinrich Mack |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Luftschraube |
| English title | Propeller of the variety in which the blades are spiralled along the shaft |
| Tech fields | Propellers, Propulsion, Design, Construction |
| Filing date | 1909-03-08 |
| Full specification filed date | |
| Application number | |
| Grant date | 1911-01-01 |
| Granted? | 1 |
| Publication date | 1911-06-10 |
| Supplementary to patent | |
| Related to aircraft? | 1 |
| Serial number | |
| Patent agent | |
| Assigned to | |
| National tech categories | AT 77d |
| IPCs | |
| CPCs | |
| Family year | 1909 |
| First filing? | 0 |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | |
| INPADOC family ID | |
| Number of text pages | 2 |
| Number of diagram pages | 1 |
| Number of figures | 1 |
| Number of claims | 1 |
