US2768014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Deadlocking latch bolt
Assignee: Yale and Towne Manufacturing Co
•
Filing: 1953-09-21
•
Granted: 1956-10-23
•
Expires: 1973-09-21
Abstract
No abstract record available.
Inventors
- 👤 Abraham H Golden
- 👤 Daniel L Biblin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:26
CPC Classifications
E; E05; E05B; E05B55/00; E05B55/12; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0977; Y10T292/098; Y10T292/62
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1148549A
Cited
US1876081A
Cited
US2124897A
Cited
US2250727A
Cited
US2272101A
Cited
US2369873A
Cited
US2497750A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-23 | 1960-04-23 | 1960-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-23 | 1964-04-23 | 1964-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-23 | 1968-04-23 | 1968-10-23 | $7700.00 | Window Closed / Lapsed |