Patent US2917606A successfully refreshed from Google Patents.
US2917606A
Expired / Lapsed
US
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Fire alarm
Assignee: UNIQUE BALANCE CO
•
Filing: 1956-05-14
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Granted: 1959-12-15
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Expires: 1976-05-14
Abstract
No abstract record available.
Inventors
- 👤 Gerret T K Durland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:01
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/74; H01H37/76; H01H37/767
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1175432A
Cited
US1030196A
Cited
US1940176A
Cited
US2552331A
Cited
US2731627A
Cited
US2765457A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-14 | 1963-06-15 | 1963-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-14 | 1967-06-15 | 1967-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-14 | 1971-06-15 | 1971-12-15 | $7700.00 | Window Closed / Lapsed |