US3254313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Touch responsive oscillator and control circuits
Assignee: Tung Sol Electric Inc
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Filing: 1964-02-06
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Granted: 1966-05-31
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Expires: 1984-02-06
Abstract
No abstract record available.
Inventors
- 👤 Carl E Atkins
- 👤 Robert L Ziolkowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:18
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/20; H03B5/24
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
163 words
A TOUCH RESPONSIVE CIRCUIT COMPRISING A SEMICONDUCTOR SWITCHING CIRCUIT HAVING INPUT, OUTPUT AND CONTROL TERMINALS, ELECTRICAL CAPACITY BETWEEN THE CONTROL AND OUTPUT TERMINALS, FIRST RESISTIVE MEANS FOR CHARGING SAID CAPACITY TO A POTENTIAL SUFFICIENT TO BACK BIAS THE SEMICONDUCTOR SWITCHING CIRCUIT NONCONDUCTING, ELECTRICAL CAPACITY BETWEEN THE INPUT AND OUTPUT TERMINALS, SECOND RESISTIVE MEANS FOR CHARGING SAID LAST MENTIONED CAPACITY TO A LEVEL WHICH IS INSUFFICIENT TO TRIGGER AND SEMICONDUCTOR SWITCHING CIRCUIT TO THE INPUT TERMINAL IT IS CONTACTED IN ADDS MEANS COUPLED TO THE INPUT TERMINAL OF SAID SEMICONDUCTOR SWITCHING CIRCUIT SO THAT WHEN IT IS CONTACTED IT ADDS SUFFICIENT BODY CAPACITY BETWEEN THE INPUT AND THE OUTPUT TERMINALS TO CAUSE THE TOTAL CAPACITY BETWEEN THE INPUT AND OUTPUT TERMINALS TO BE CHARGED TO A LEVER SUFFICIENT TO TRIGGER SAID SEMICONDUCTOR SWITCHING CIRCUIT INTO CONDUCTION AND THEREBY DISCHARGE THE CHARGE ON THE CAPACITY BETWEEN THE CONTROL AND OUTPUT TERMINALS WHEREBY THE SEMICONDUCTOR SWITCHING CIRCUIT WILL BE ALTERNATELY AND REPEATEDLY RENDERED CONDUCTING AND NONCONDUCTING.
References Cited (Backward Citations)
US2890353A
Cited
US3153153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |