US3288395A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Helicopter
Assignee: Individual
•
Filing: 1964-12-07
•
Granted: 1966-11-29
•
Expires: 1984-12-07
Abstract
No abstract record available.
Inventors
- 👤 Krohncke Kenneth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:22
CPC Classifications
B; B64; B64C; B64C27/00; B64C27/54
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
65 words
IN A HELICOPTER OR THE LIKE HAVING A FUSELAGE INCLUDING TRANSVERSE AND LONGITUDINAL FRAME MEMBERS, A LANDING GEAR WHICH COMPRISES A PAIR OF LIKE LATERALLY-SPACED, GROUND-ENGAGING RUNNERS, TWO LEGS SECURED TO EACH OF SAID RUNNERS AT THEIR LOWER ENDS AND TO SAID FRAME MEMBERS AT THEIR UPPER ENDS, A SLEEVE SECURED TO SAID FRAME MEMBERS AND SLIDABLY ENCOMPASSING EACH OF SAID LEGS INTERMEDIATE ITS ENDS.
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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |