Patent US2251865A successfully refreshed from Google Patents.
US2251865A
Expired / Lapsed
US
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Hinge
Assignee: Individual
•
Filing: 1940-10-18
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Granted: 1941-08-05
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Expires: 1960-10-18
Abstract
No abstract record available.
Inventors
- 👤 William E Barrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:54
CPC Classifications
E; E05; E05D; E05D5/00; E05D5/02; E05D5/06; E05D5/065; E05D7/00; E05D7/04; E05D7/0415; E05D7/0423; E05D2007/0484; E05Y; E05Y2900/00; E05Y2900/20
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) | 1944-08-04 | 1945-02-03 | 1945-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-08-04 | 1949-02-03 | 1949-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-08-04 | 1953-02-03 | 1953-08-05 | $7700.00 | Window Closed / Lapsed |