US2418044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Night latch
Assignee: Independent Lock Co
•
Filing: 1944-12-26
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Granted: 1947-03-25
•
Expires: 1964-12-26
Abstract
No abstract record available.
Inventors
- 👤 Charles H Nehls
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:20
CPC Classifications
E; E05; E05B; E05B55/00; Y; Y10; Y10S; Y10S70/00; Y10S70/06; Y10T; Y10T292/00; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0977; Y10T292/0982; Y10T292/0986; Y10T292/0989
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1816259A
Cited
US2038907A
Cited
US2223765A
Cited
US2232937A
Cited
US2268743A
Cited
US2220591A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-24 | 1950-09-23 | 1951-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-24 | 1954-09-23 | 1955-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-24 | 1958-09-23 | 1959-03-25 | $7700.00 | Window Closed / Lapsed |