Patent US4817453A successfully refreshed from Google Patents.
US2844339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aircraft landing gear
Assignee: Individual
•
Filing: 1954-03-01
•
Granted: 1958-07-22
•
Expires: 1974-03-01
Abstract
No abstract record available.
Inventors
- 👤 Stroukoff Oleg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:54
CPC Classifications
B; B64; B64C; B64C25/00; B64C25/32; B64C25/66
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB132877A
Cited
GB125159A
Cited
DE325134C
Cited
US2021876A
Cited
FR699391A
Cited
US2106934A
Cited
US2302343A
Cited
US2321561A
Cited
DE736719C
Cited
FR943917A
Cited
US2729405A
Cited
US2718368A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |