Patent US2752014A successfully refreshed from Google Patents.
US2752014A
Expired / Lapsed
US
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Extruded metal door frame and hinge assembly
Assignee: Individual
•
Filing: 1953-05-18
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Granted: 1956-06-26
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Expires: 1973-05-18
Abstract
No abstract record available.
Inventors
- 👤 William A Watson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:46
CPC Classifications
E; E05; E05D; E05D7/00; E05D7/009; E05D11/00; E05D5/00; E05D5/02; E05D5/04; E05Y; E05Y2800/00; E05Y2800/10; E05Y2800/12; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1050924A
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US1282233A
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US1557572A
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US1619578A
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US1940322A
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GB383490A
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US2284074A
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US2282061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-26 | 1959-12-26 | 1960-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-26 | 1963-12-26 | 1964-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-26 | 1967-12-26 | 1968-06-26 | $7700.00 | Window Closed / Lapsed |