US2767425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concealed hinge for doors and the like
Assignee: Individual
•
Filing: 1952-03-27
•
Granted: 1956-10-23
•
Expires: 1972-03-27
Abstract
No abstract record available.
Inventors
- 👤 Bradley George Stuart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:36
CPC Classifications
E; E05; E05D; E05D1/00; E05D1/04; E05D5/00; E05D5/02; E05D5/06; E05D2005/067; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US375394A
Cited
US629396A
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US1279246A
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US1447161A
Cited
US1486371A
Cited
US1648781A
Cited
GB241845A
Cited
US2056805A
Cited
US2331595A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |