Patent US3173632A successfully refreshed from Google Patents.
US3173632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Landing gear for hovering type aircraft
Assignee: Del Mar Engineering Laboratories
•
Filing: 1962-07-30
•
Granted: 1965-03-16
•
Expires: 1982-07-30
Abstract
No abstract record available.
Inventors
- 👤 Donald C Woods
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:45
CPC Classifications
B; B64; B64C; B64C25/00; B64C25/32; B64C25/52; B64C25/001; B64C2025/008; B64C2025/325
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
IN A LANDING GEAR FOR A HOVERING TYPE AIRCRAFT, THE COMBINATION OF: TWO GROUND CONTACT MEANS ON THE OPPOSITE SIDES RESPECTIVELY OF THE AIRCRAFT TO SUPPORT TH AIRCRAFT ON THE GROUND; FIRST ARM MEANS PIVOTALLY MOUNTED ON ONE SIDE OF THE AIRCRAFT AND EXTENDING FORWARDLY OF THE AIRCRAFT, SAID ARM MEANS BEING CONNECTED TO THE CORRESPONDING GROUND CONTACT MEANS ON THE SAME SIDE OF THE AIRCRAFT TO RAISE AND LOWER THE GROUND CONTACT MEANS RELATIVE TO THE AIRCRAFT; SECOND ARM MEANS PIVOTALLY MOUNTED ON THE OTHER SIDE OF THE AIRCRAFT AND EXTENDING REARWARDLY THEREOF, SAID SECOND ARM MEANS BEING CONNECTED TO THE CORRESPONDING GROUND CONTACT MEANS ON THE SAME SIDE OF THE AIRCRAFT TO RAISE AND LOWER THE GROUND CONTACT MEANS RELATIVE TO THE AIRCRAFT; ROTARY MEANS INTEGRALLY INTERCONNECTING THE TWO ARM MEANS FOR ROTATION THEREWITH; AND MEANS TO IMMOBILIZE SAID ROTARY INTERCONNECTING MEANS THEREBY TO IMMOBILIZE SAID TWO ARM MEANS
Claim 2
Dependent Claim
151 words
IN A LANDING GEAR FOR A HOVERING TYPE AIRCRAFT, THE COMBINATION OF: TWO GROUND CONTACT MEANS ON THE OPPOSITE SIDES RESPECTIVELY OF THE AIRCRAFT TO SUPPORT TH AIRCRAFT ON THE GROUND; FIRST ARM MEANS PIVOTALLY MOUNTED ON ONE SIDE OF THE AIRCRAFT AND EXTENDING FORWARDLY OF THE AIRCRAFT, SAID ARM MEANS BEING CONNECTED TO THE CORRESPONDING GROUND CONTACT MEANS ON THE SAME SIDE OF THE AIRCRAFT TO RAISE AND LOWER THE GROUND CONTACT MEANS RELATIVE TO THE AIRCRAFT; SECOND ARM MEANS PIVOTALLY MOUNTED ON THE OTHER SIDE OF THE AIRCRAFT AND EXTENDING REARWARDLY THEREOF, SAID SECOND ARM MEANS BEING CONNECTED TO THE CORRESPONDING GROUND CONTACT MEANS ON THE SAME SIDE OF THE AIRCRAFT TO RAISE AND LOWER THE GROUND CONTACT MEANS RELATIVE TO THE AIRCRAFT; ROTARY MEANS INTEGRALLY INTERCONNECTING THE TWO ARM MEANS FOR ROTATION THEREWITH; AND MEANS TO IMMOBILIZE SAID ROTARY INTERCONNECTING MEANS THEREBY TO IMMOBILIZE SAID TWO ARM MEANS
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |