US3006675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Door latch bolt assembly
Assignee: National Lock Co
•
Filing: 1958-02-17
•
Granted: 1961-10-31
•
Expires: 1978-02-17
Abstract
No abstract record available.
Inventors
- 👤 Francis L Erickson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:13
CPC Classifications
E; E05; E05B; E05B9/00; E05B9/08; Y; Y10; Y10T; Y10T292/00; Y10T292/62; Y10T70/00; Y10T70/80; Y10T70/8432; Y10T70/8459; Y10T70/8486; Y10T70/8541
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1829814A
Cited
US2016196A
Cited
US2103987A
Cited
US2508702A
Cited
US2578873A
Cited
US2703725A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-30 | 1965-05-01 | 1965-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-30 | 1969-05-01 | 1969-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-30 | 1973-05-01 | 1973-10-31 | $7700.00 | Window Closed / Lapsed |