US3128456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Annunciators with manual reset
Assignee: Westinghouse Electric Corp
•
Filing: 1957-01-22
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Granted: 1964-04-07
•
Expires: 1977-01-22
Abstract
No abstract record available.
Inventors
- 👤 Sheldon D Silliman
- 👤 John F Reuther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:34
CPC Classifications
G; G08; G08B; G08B25/00; G08B25/14; G08B23/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
53 words
AN ANNUNCIATOR COMPRISING AN ALARM DEVICE, A FLIPFLOP INDIVIDUAL TO THE ALARM DEVICE, A PLURALITY OF INDICATING DEVICES, A FLIP-FLOP INDIVIDUAL TO EACH INDICATING DEVICE, SWITCH MEANS EFFECTING OPERATION OF EACH OF THE INDIVIDUAL FLIP-FLOPS, MEANS FOR RESETTING THE INDIVIDUAL FLIPFLOPS, AND CAPACITOR MEANS CONNECTING THE INDIVIDUAL FLIPFLOPS TO THE ALARM DEVICE FLIP-FLOP.
References Cited (Backward Citations)
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US2917731A
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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) | 1967-04-07 | 1967-10-07 | 1968-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-07 | 1971-10-07 | 1972-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-07 | 1975-10-07 | 1976-04-07 | $7700.00 | Window Closed / Lapsed |