US2676480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Night latch
Assignee: Yale and Towne Manufacturing Co
•
Filing: 1952-03-14
•
Granted: 1954-04-27
•
Expires: 1972-03-14
Abstract
No abstract record available.
Inventors
- 👤 Mathias M Check
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:12
CPC Classifications
E; E05; E05B; E05B17/00; E05B17/20; E05B17/2003; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0977; Y10T292/0982; Y10T292/68; Y10T292/79; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7915; Y10T70/7927
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US435554A
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US699301A
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US834338A
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US1017238A
Cited
US1246588A
Cited
US1652621A
Cited
US1659589A
Cited
US1734149A
Cited
US1800662A
Cited
US2350306A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-26 | 1957-10-26 | 1958-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-26 | 1961-10-26 | 1962-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-26 | 1965-10-26 | 1966-04-27 | $7700.00 | Window Closed / Lapsed |