Patent US2953174A successfully refreshed from Google Patents.
US2953174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corner clamp
Assignee: Lockheed Martin Corp
•
Filing: 1956-09-10
•
Granted: 1960-09-20
•
Expires: 1976-09-10
Abstract
No abstract record available.
Inventors
- 👤 Leon J Wilkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:34
CPC Classifications
B; B25; B25B; B25B5/00; B25B5/06; B25B5/12; Y; Y10; Y10T; Y10T279/00; Y10T279/19; Y10T279/1986
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE297520C
Cited
US1393059A
Cited
US1952453A
Cited
US2054572A
Cited
US2386567A
Cited
US2350034A
Cited
US2456100A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |