Patent US2920370A successfully refreshed from Google Patents.
US2920370A
Expired / Lapsed
US
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Overcenter latch
Assignee: Poly Industries Inc
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Filing: 1957-09-26
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Granted: 1960-01-12
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Expires: 1977-09-26
Abstract
No abstract record available.
Inventors
- 👤 Granville M Guy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:48
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/10; E05C19/12; E05C19/14; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1412; Y10T24/1418; Y10T24/142
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1002901A
Cited
US2706648A
Cited
US2727292A
Cited
GB735271A
Cited
US2806276A
Cited
US2816343A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |