US2660632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burglar alarm safety lock
Assignee: Individual
•
Filing: 1951-12-14
•
Granted: 1953-11-24
•
Expires: 1971-12-14
Abstract
No abstract record available.
Inventors
- 👤 Makishima Kenji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:40
CPC Classifications
G; G08; G08B; G08B13/00; G08B13/02; G08B13/08; E; E05; E05B; E05B45/00; E05B45/06; E05B45/08; E05B45/083; E05B45/086
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1265361A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-23 | 1957-05-25 | 1957-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-23 | 1961-05-25 | 1961-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-23 | 1965-05-25 | 1965-11-24 | $7700.00 | Window Closed / Lapsed |