US3190585A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Landing system for aircraft
Assignee: Dornier Werke GmbH
•
Filing: 1962-02-05
•
Granted: 1965-06-22
•
Expires: 1982-02-05
Abstract
No abstract record available.
Inventors
- 👤 Busch Heinz
- 👤 Dornier Silvius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:11
CPC Classifications
G; G05; G05D; G05D1/00; G05D1/04; G05D1/06; G05D1/0607; G05D1/0653; G05D1/0676; B; B64; B64D; B64D45/00; B64D45/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
121 words
A SYSTEM FOR LANDING AN AIRCRAFT INCLUDING A SIGHTING DEVICE MOUNTED ON THE AIRCRAFT FOR SIGHITING THE LANDING POINT ON THE GROUND, THE LINE OF SIGHT OF SAID DEVICE BEING PARALLEL TO THE FLIGHT PATH, AND A PITCH ANGLE INDICATOR MOUNTED ON THE AIRCRAFT, SAID PITCH ANGLE INDICATOR COMPRISING INDICATING MEANS MOVABLE AT A RIGHT ANGLE TO THE LINE OF SIGHT OF SAID SIGHTING DEVICE AND IN A PLANE CONTAINING THE VERTICAL AXIS OF THE AIRCRAFT, SAID INDICATING MEANS BEING IN THE LINE OF SIGHT UPON OPTIMAL GLIDING ANGLE OF THE AIRCRAFT WHEN APPROACHING THE LANDING POINT, SAID SIGHTING DEVICE INCLUDING A REAR SIGHT AND A FRONT SIGHT, AT LEAST ONE OF SAID SIGHTS BEING VERTICALLY ADJUSTABLY MOUNTED ON THE AIRCRAFT.
References Cited (Backward Citations)
US1256987A
Cited
US1716821A
Cited
US1963826A
Cited
US2151549A
Cited
US2280126A
Cited
US2630283A
Cited
US2737640A
Cited
US3045955A
Cited
US3128623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |