US2740953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined thermal and power failure alarm device
Assignee: Individual
•
Filing: 1952-08-08
•
Granted: 1956-04-03
•
Expires: 1972-08-08
Abstract
No abstract record available.
Inventors
- 👤 Curtis P Jeppesen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:10
CPC Classifications
G; G08; G08B; G08B17/00; G08B17/06; A; A01; A01K; A01K31/00; A01K31/18; A01K31/20; G05; G05D; G05D23/00; G05D23/19
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1179276A
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US2029402A
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US2185361A
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US2439331A
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US2526679A
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US2501793A
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US2514807A
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US2596704A
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US2609431A
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US2663858A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-03 | 1959-10-03 | 1960-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-03 | 1963-10-03 | 1964-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-03 | 1967-10-03 | 1968-04-03 | $7700.00 | Window Closed / Lapsed |