US2724144A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable hinge construction
Assignee: Standard Railway Equipment Manufacturing Co
•
Filing: 1953-03-04
•
Granted: 1955-11-22
•
Expires: 1973-03-04
Abstract
No abstract record available.
Inventors
- 👤 Gustav H Lohrman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:20
CPC Classifications
E; E05; E05D; E05D7/00; E05D7/0009; E05D7/0018; E05D7/0045; E05D7/0054; E05D2007/0063; E05D5/00; E05D5/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1208422A
Cited
US2408071A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-11-21 | 1959-05-23 | 1959-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-11-21 | 1963-05-23 | 1963-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-11-21 | 1967-05-23 | 1967-11-22 | $7700.00 | Window Closed / Lapsed |