US2154733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hinge and prop structure
Assignee: Individual
•
Filing: 1937-08-30
•
Granted: 1939-04-18
•
Expires: 1957-08-30
Abstract
No abstract record available.
Inventors
- 👤 Orlow Stephen De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:57
CPC Classifications
E; E05; E05D; E05D3/00; E05D3/06; E05D3/14; E05D3/145; E05F; E05F1/00; E05F1/08; E05F1/10; E05F1/12; E05F1/1246; E05F1/1269; E05F1/1276; E05Y; E05Y2900/00; E05Y2900/50; E05Y2900/53; E05Y2900/536
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-04-17 | 1942-10-17 | 1943-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-04-17 | 1946-10-17 | 1947-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-04-17 | 1950-10-17 | 1951-04-18 | $7700.00 | Window Closed / Lapsed |