US3076185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Annunciator system
Assignee: EIDP Inc
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Filing: 1960-03-22
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Granted: 1963-01-29
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Expires: 1980-03-22
Abstract
No abstract record available.
Inventors
- 👤 Edward S Ida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:29
CPC Classifications
G; G08; G08B; G08B23/00; G08B25/00; G08B25/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
AN ANNUNCIATOR CIRCUIT COMPRISING IN COMBINATION AN ALARM LAMP CONNECTED ACROSS A POWER SOURCE PRESELECTED TO OPERATE SAID LAMP AT A FIRST CHARACTERISTIC LEVEL OF ILLUMINATION BELOW FULL BRILLIANCE, AN AUXILIARY POWER SUPPLY CIRCUIT INCLUDING A TRANSISTOR OPERATING IN THE SWITCHING MODE CONNECTED IN SHUNT POWER SUPPLY CIRCUIT WITH SAID ALARM LAMP AND SIGNAL SOURCE IN ELECTRICAL CIRCUIT WITH SAID ALARM LAMP THROUGH SAID TRANSISTOR PRESELECTED TO SUPPLY ELECTRICAL CURRENT IN AN AMOUNT SUFFICIENT TO OPERATE SAID ALARM LAMP AT A CHARACTERISTIC SECOND LEVEL OF ILLUMINATION BRIGHTER THAN SAID FIRST LEVEL OF ILLUMINATION, AND AN ALARM SWITCH RESPONSIVE IN POSITION TO THE STATE OF THE APPARATUS MONITORED TO OPERATE SAID TRANSISTOR TO CLOSED CIRCUIT STATE WHEN SAID APPARATUS MONITORED IS OUT OF SERVICE AND TO OPERATED SAID TRANSISTOR TO
Claim 2
Dependent Claim
129 words
AN ANNUNCIATOR CIRCUIT COMPRISING IN COMBINATION AN ALARM LAMP CONNECTED ACROSS A POWER SOURCE PRESELECTED TO OPERATE SAID LAMP AT A FIRST CHARACTERISTIC LEVEL OF ILLUMINATION BELOW FULL BRILLIANCE, AN AUXILIARY POWER SUPPLY CIRCUIT INCLUDING A TRANSISTOR OPERATING IN THE SWITCHING MODE CONNECTED IN SHUNT POWER SUPPLY CIRCUIT WITH SAID ALARM LAMP AND SIGNAL SOURCE IN ELECTRICAL CIRCUIT WITH SAID ALARM LAMP THROUGH SAID TRANSISTOR PRESELECTED TO SUPPLY ELECTRICAL CURRENT IN AN AMOUNT SUFFICIENT TO OPERATE SAID ALARM LAMP AT A CHARACTERISTIC SECOND LEVEL OF ILLUMINATION BRIGHTER THAN SAID FIRST LEVEL OF ILLUMINATION, AND AN ALARM SWITCH RESPONSIVE IN POSITION TO THE STATE OF THE APPARATUS MONITORED TO OPERATE SAID TRANSISTOR TO CLOSED CIRCUIT STATE WHEN SAID APPARATUS MONITORED IS OUT OF SERVICE AND TO OPERATED SAID TRANSISTOR TO
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-28 | 1966-07-30 | 1967-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-28 | 1970-07-30 | 1971-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-28 | 1974-07-30 | 1975-01-29 | $7700.00 | Window Closed / Lapsed |