Patent DE-1922-390989
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This is an addition to Patent DE-1922-388401. We are giving this 390989 the filing date 1922-07-11, based on ours notes found on patent dates, it seeming that "Patentirt im Deutschen Reiche vom" is exactly one day after the filing date. Often, we approach German patents by way international references, so the above differential is corroborated via the international relation.
Sources
- Original patent document and Bibliographic info at DPMA
- Original patent document and bibliography entry at espacenet
- Inventor location: Travemünde
- Note: Espacenet priority date entered data does not take into account the fact that this is an addition, though this fact is explicit on this original document.
| Year filed | 1922 |
|---|---|
| Year granted | 1924 |
| Office | DE |
| Patent number | 390989 |
| Inventors | Ernst Heinkel |
| Inventor country | DE |
| Inventor location | |
| Applicant person | Ernst Heinkel |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Leitfläche für Hoehensteuer von Flugzeugen |
| English title | Guidance surface for aircraft altitude control |
| Tech fields | airplane, control, rudder |
| Filing date | 1922-07-11 |
| Full specification filed date | |
| Application number | |
| Grant date | 1924-03-03 |
| Granted? | 1 |
| Publication date | 1924-03-03 |
| Supplementary to patent | Patent DE-1922-388401 |
| Related to aircraft? | 1 |
| Serial number | |
| Patent agent | |
| Assigned to | |
| National tech categories | DE 77h.5 |
| IPCs | IPC B64C9/02 |
| CPCs | CPC B64C9/02 |
| Family year | 1922 |
| First filing? | |
| 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 | 2 |
| Number of claims | 1 |
