Patent US2872233A successfully refreshed from Google Patents.
US2872233A
Expired / Lapsed
US
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Safety release latch
Assignee: Individual
•
Filing: 1956-07-05
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Granted: 1959-02-03
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Expires: 1976-07-05
Abstract
No abstract record available.
Inventors
- 👤 Jr Lawrence M Bordner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:24
CPC Classifications
E; E05; E05B; E05B65/00; E05B65/0042; E05B65/0053; Y; Y10; Y10S; Y10S292/00; Y10S292/65; Y10S292/71; Y10T; Y10T292/00; Y10T292/08; Y10T292/0908; Y10T292/096; Y10T292/1014; Y10T292/1022; Y10T292/1025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1904053A
Cited
US2161757A
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US2475478A
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US2576978A
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US2655395A
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US2718421A
Cited
US2747906A
Cited
US2680638A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-02 | 1962-08-04 | 1963-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-02 | 1966-08-04 | 1967-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-02 | 1970-08-04 | 1971-02-03 | $7700.00 | Window Closed / Lapsed |