Patent US1951358A successfully refreshed from Google Patents.
US3339104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solid state switch
Assignee: Kollsman Instrument Corp
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Filing: 1964-11-05
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Granted: 1967-08-29
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Expires: 1984-11-05
Abstract
No abstract record available.
Inventors
- 👤 Kushner David
- 👤 Carl A Listl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:01
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/78
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
IN COMBINATION; A FIXED MECHANICAL TO ELECTRICAL TRANSDUCER, A PRESSURE PLATE ADJACENT SAID FIXED TRANSDUCER AND MOVABLE TO PLACE SAID FIXED TRANSDUCER IN STRESS, AN ELECTROLUMINESCENT PANEL MOUNTED ON SAID PRESSURE PLATE, A POWER SOURCE AND A BI-STABLE CIRCUIT; SAID TRANSDUCER AND SAID ELECTROLUMINESCENT PANEL EACH HAVING A PAIR OF TERMINALS; SAID BI-STABLE CIRCUIT HAVING A PAIR OF INPUT TERMINALS, POWER SUPPLY TERMINALS, AND A PAIR OF OUTPUT TERMINALS; SAID POWER SOURCE CONNECTED TO SAID POWER SUPPLY TERMINALS OF SAID BI-STABLE CIRCUIT; SAID PAIR OF TERMINALS OF SAID TRANSDUCER BEING CONNECTED TO SAID PAIR OF INPUT TERMINALS OF SAID BI-STABLE CIRCUIT; WHEREBY SUCCESSIVE STRAINS APPLIED TO SAID TRANSDUCER CAUSES THE SUCCESSIVE GENERATION OF OUTPUT SIGNALS AT SAID PAIR OF TERMINALS OF SAID TRANSDUCER; SAID SUCCESSIVE OUTPUT SIGNALS CAUSING THE SUCCESSIVE CHANGING OF THE CONDUCTION STATE OF SAID BISTABLE CIRCUIT; SAID PAIR OF TERMINALS OF SAID ELECTROLUMINESCENT PANEL BEING CONNECTED TO SAID OUTPUT TERMINALS OF SAID BI-STABLE CIRCUIT.
Claim 2
Dependent Claim
157 words
IN COMBINATION; A FIXED MECHANICAL TO ELECTRICAL TRANSDUCER, A PRESSURE PLATE ADJACENT SAID FIXED TRANSDUCER AND MOVABLE TO PLACE SAID FIXED TRANSDUCER IN STRESS, AN ELECTROLUMINESCENT PANEL MOUNTED ON SAID PRESSURE PLATE, A POWER SOURCE AND A BI-STABLE CIRCUIT; SAID TRANSDUCER AND SAID ELECTROLUMINESCENT PANEL EACH HAVING A PAIR OF TERMINALS; SAID BI-STABLE CIRCUIT HAVING A PAIR OF INPUT TERMINALS, POWER SUPPLY TERMINALS, AND A PAIR OF OUTPUT TERMINALS; SAID POWER SOURCE CONNECTED TO SAID POWER SUPPLY TERMINALS OF SAID BI-STABLE CIRCUIT; SAID PAIR OF TERMINALS OF SAID TRANSDUCER BEING CONNECTED TO SAID PAIR OF INPUT TERMINALS OF SAID BI-STABLE CIRCUIT; WHEREBY SUCCESSIVE STRAINS APPLIED TO SAID TRANSDUCER CAUSES THE SUCCESSIVE GENERATION OF OUTPUT SIGNALS AT SAID PAIR OF TERMINALS OF SAID TRANSDUCER; SAID SUCCESSIVE OUTPUT SIGNALS CAUSING THE SUCCESSIVE CHANGING OF THE CONDUCTION STATE OF SAID BISTABLE CIRCUIT; SAID PAIR OF TERMINALS OF SAID ELECTROLUMINESCENT PANEL BEING CONNECTED TO SAID OUTPUT TERMINALS OF SAID BI-STABLE CIRCUIT.
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) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |