Patent US1853918A successfully refreshed from Google Patents.
US3441269A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Latch bolt mechanism
Assignee: Newfrey LLC
•
Filing: 1966-10-31
•
Granted: 1969-04-29
•
Expires: 1986-10-31
Abstract
No abstract record available.
Inventors
- 👤 William J Doyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:20
CPC Classifications
E; E05; E05B; E05B55/00; E05B55/005; Y; Y10; Y10T; Y10T292/00; Y10T292/06; Y10T292/08; Y10T292/096; Y10T292/0969; Y10T292/097; Y10T292/0971; Y10T292/62
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2726891A
Cited
US2711920A
Cited
US2736597A
Cited
US2768015A
Cited
US2980463A
Cited
US3142506A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-28 | 1972-10-28 | 1973-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-28 | 1976-10-28 | 1977-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-28 | 1980-10-28 | 1981-04-29 | $7700.00 | Window Closed / Lapsed |