Patent US2440734A successfully refreshed from Google Patents.
US2440734A
Expired / Lapsed
US
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Lift and latch for deep-freeze cabinet lid
Assignee: National Lock Co
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Filing: 1944-04-10
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Granted: 1948-05-04
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Expires: 1964-04-10
Abstract
No abstract record available.
Inventors
- 👤 William O Burke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:30
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/0042; Y; Y10; Y10S; Y10S292/00; Y10S292/71; Y10T; Y10T292/00; Y10T292/08; Y10T292/087; Y10T292/1043; Y10T292/1051; Y10T292/1052; Y10T292/1059
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-04 | 1951-11-03 | 1952-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-04 | 1955-11-03 | 1956-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-04 | 1959-11-03 | 1960-05-04 | $7700.00 | Window Closed / Lapsed |