Patent US2712957A successfully refreshed from Google Patents.
US2712957A
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US
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Latch mechanism
Assignee: HANCOCK Manufacturing CO
•
Filing: 1951-03-30
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Granted: 1955-07-12
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Expires: 1971-03-30
Abstract
No abstract record available.
Inventors
- 👤 Marpie Rollo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:21
CPC Classifications
E; E05; E05B; E05B85/00; E05B85/20; E05B85/24; E05B85/28; Y; Y10; Y10S; Y10S292/00; Y10S292/24; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1051; Y10T292/1052; Y10T292/1059; Y10T292/306; Y10T292/307; Y10T292/68; Y10T292/688; Y10T292/691
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2167391A
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US2270559A
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US2301559A
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US2347146A
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US2362255A
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US2362256A
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US2494754A
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US2569046A
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US2557468A
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US2499111A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-11 | 1959-01-10 | 1959-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-11 | 1963-01-10 | 1963-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-11 | 1967-01-10 | 1967-07-12 | $7700.00 | Window Closed / Lapsed |