US2770690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically actuated burglar alarm and circuit closer therefor
Assignee: Individual
•
Filing: 1953-07-10
•
Granted: 1956-11-13
•
Expires: 1973-07-10
Abstract
No abstract record available.
Inventors
- 👤 Tillmon J Sanders
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:32
CPC Classifications
G; G08; G08B; G08B13/00; G08B13/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2629863A
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US930324A
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US1208007A
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US1409156A
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US1406447A
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US1500706A
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US1685329A
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US1903535A
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US1964353A
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US2449168A
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US2605342A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-13 | 1960-05-14 | 1960-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-13 | 1964-05-14 | 1964-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-13 | 1968-05-14 | 1968-11-13 | $7700.00 | Window Closed / Lapsed |