Patent US3106649A successfully refreshed from Google Patents.
US3106649A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sensing circuit employing two tunnel diodes to provide proper current distribution upon one being switched
Assignee: Ampex Corp
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Filing: 1960-12-27
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Granted: 1963-10-08
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Expires: 1980-12-27
Abstract
No abstract record available.
Inventors
- 👤 William R Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:48
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A SIGNAL-SENSING AMPLIFIER COMPRISING A FIRST AND SECOND TUNNEL DIODE EACH HAVING AN ANODE AND A CATHODE AND EACH HAVING TWO STABLE STATES, MEANS FOR CONNECTING SAID TWO TUNNEL DIODE ANODES TOGETHER, MEANS INCLUDING A TRANSISTOR CONNECTED TO SAID TUNNEL DIODES FOR ESTABLISHING SAID TUNNEL DIODES IN ONE OF THEIR TWO STABLE STATES, AND MEANS FOR APPLYING SIGNALS TO BE SENSED TO THE CATHODE OF ONE OF SAID TUNNEL DIODES TO TRANSFER BOTH SAID TUNNEL DIODES TO THEIR SECOND STABLE STATES.
Claim 2
Dependent Claim
81 words
A SIGNAL-SENSING AMPLIFIER COMPRISING A FIRST AND SECOND TUNNEL DIODE EACH HAVING AN ANODE AND A CATHODE AND EACH HAVING TWO STABLE STATES, MEANS FOR CONNECTING SAID TWO TUNNEL DIODE ANODES TOGETHER, MEANS INCLUDING A TRANSISTOR CONNECTED TO SAID TUNNEL DIODES FOR ESTABLISHING SAID TUNNEL DIODES IN ONE OF THEIR TWO STABLE STATES, AND MEANS FOR APPLYING SIGNALS TO BE SENSED TO THE CATHODE OF ONE OF SAID TUNNEL DIODES TO TRANSFER BOTH SAID TUNNEL DIODES TO THEIR SECOND STABLE STATES.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-07 | 1967-04-08 | 1967-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-07 | 1971-04-08 | 1971-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-07 | 1975-04-08 | 1975-10-08 | $7700.00 | Window Closed / Lapsed |