US2808610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door construction and a concealed hinge assembly therefor
Assignee: Individual
•
Filing: 1954-05-26
•
Granted: 1957-10-08
•
Expires: 1974-05-26
Abstract
No abstract record available.
Inventors
- 👤 Harold D Minor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:14
CPC Classifications
E; E05; E05D; E05D3/00; E05D3/02; E05D3/04; E05D5/00; E05D5/02; E05D5/04; E05D7/00; E05D7/08; E05D7/081; E05D2003/025; E05D2003/027; E05D5/10; E05D2005/102; E05D5/12; E05D5/121; E05Y; E05Y2900/00; E05Y2900/10; E05Y2900/13; E05Y2900/132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE511013A
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US292005A
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US750193A
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CH30679A
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US1620701A
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US2150064A
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GB532788A
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US2346430A
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US2624067A
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US2604156A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-07 | 1961-04-08 | 1961-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-07 | 1965-04-08 | 1965-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-07 | 1969-04-08 | 1969-10-08 | $7700.00 | Window Closed / Lapsed |