Patent US-1918-1450431
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- Tech class CPC G05D1/0676 Rate of change of altitude or depth specially adapted for aircraft during a phase of take-off or landing specially adapted for landing
- Inventor location: 2, Passage du Chemin-Vert, Paris (This is a Post Office address.)
- Witnesses as shown on the final text page: John F. Simons and George Loisel
This patent bears direct relation to Patent FR-1917-503731 and adds one figure to the diagrams.
Template:Delayed -- why did it take 4.5 years to approve? WWI was over; that wasn't the cause
Sources
- Patent 1450431 document and bibliographic info on espacenet
- Patent 1450431 at google patents
| Year filed | 1918 |
|---|---|
| Year granted | 1923 |
| Office | US |
| Patent number | 1450431 |
| Inventors | Roger Courtois-Suffit |
| Inventor country | FR |
| Inventor location | |
| Applicant person | Roger Courtois-Suffit |
| Applicant firm | |
| Applicant type | INDIV |
| Applicant is inventor? | 1 |
| Original title | Landing indicator for aircraft |
| English title | Landing indicator for aircraft |
| Tech fields | Instrument, sensor, landing |
| Filing date | 1918-12-20 |
| Full specification filed date | |
| Application number | |
| Grant date | 1923-04-03 |
| Granted? | 1 |
| Publication date | |
| Supplementary to patent | Patent FR-1917-503731 |
| Related to aircraft? | 1 |
| Serial number | 267634 |
| Patent agent | |
| Assigned to | |
| National tech categories | |
| IPCs | IPC G05D1/06 |
| CPCs | CPC G05D1/0676 |
| Family year | 1915 |
| First filing? | 0 |
| Cites these patents | |
| Citations from after 1930 | |
| Application ID | |
| INPADOC family ID | |
| Number of text pages | 3 |
| Number of diagram pages | 2 |
| Number of figures | 5 |
| Number of claims | 7 |
