Patent US3299290A successfully refreshed from Google Patents.
US3299290A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two terminal storage circuit employing single transistor and diode combination
Assignee: HP Inc
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Filing: 1964-02-17
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Granted: 1967-01-17
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Expires: 1984-02-17
Abstract
No abstract record available.
Inventors
- 👤 John L Moll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:10
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/33
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A SIGNAL CIRCUIT COMPRISING: FIRST AND SECOND TERMINALS; A TRANSISTOR HAVING COLLECTOR, BASE, AND EMITTER REGIONS: FIRST CIRCUIT MEANS INCLUDING A FIRST DIODE AND CONNECTING SAID COLLECTOR AND BASE REGIONS AND SAID FIRST DIODE INTERMEDIATE TO SAID FIRST AND SECOND TERMINALS FOR FORMING A UNDIRECTIONAL CHARGING PATH INCLUDING SAID COLLECTOR AND BASE REGIONS AND SAID FIRST DIODE, SAID FIRST DIODE BEING CONNECTED INTERMEDIATE TO SAID BASE REGION AND TO SAID FIRST TERMINAL AND BEING POLED IN A DIRECTION DETERMINED BY THE CONDUCTIVITY TYPE OF SAID BASE REGION; SECOND CIRCUIT MEANS INCLUDING A SECOND DIODE AND CONNECTING SAID SECOND DIODE AND SAID EMITTER, BASE, AND COLLECTOR REGIONS INTERMEDIATE TO SAID FIRST AND SECOND TERMINALS FOR FORMING A UNIDIRECTIONAL DISCHARGING PATH INCLUDING SAID SECOND DIODE AND SAID EMITTER, BASE, AND COLLECTOR REGIONS, SAID SECOND DIODE BEING CONNECTED INTERMEDIATE TO SAID EMITTER REGION AND TO A POINT BETWEEN SAID FIRST DIODE AND SAID FIRST TERMINAL
Claim 2
Dependent Claim
152 words
A SIGNAL CIRCUIT COMPRISING: FIRST AND SECOND TERMINALS; A TRANSISTOR HAVING COLLECTOR, BASE, AND EMITTER REGIONS: FIRST CIRCUIT MEANS INCLUDING A FIRST DIODE AND CONNECTING SAID COLLECTOR AND BASE REGIONS AND SAID FIRST DIODE INTERMEDIATE TO SAID FIRST AND SECOND TERMINALS FOR FORMING A UNDIRECTIONAL CHARGING PATH INCLUDING SAID COLLECTOR AND BASE REGIONS AND SAID FIRST DIODE, SAID FIRST DIODE BEING CONNECTED INTERMEDIATE TO SAID BASE REGION AND TO SAID FIRST TERMINAL AND BEING POLED IN A DIRECTION DETERMINED BY THE CONDUCTIVITY TYPE OF SAID BASE REGION; SECOND CIRCUIT MEANS INCLUDING A SECOND DIODE AND CONNECTING SAID SECOND DIODE AND SAID EMITTER, BASE, AND COLLECTOR REGIONS INTERMEDIATE TO SAID FIRST AND SECOND TERMINALS FOR FORMING A UNIDIRECTIONAL DISCHARGING PATH INCLUDING SAID SECOND DIODE AND SAID EMITTER, BASE, AND COLLECTOR REGIONS, SAID SECOND DIODE BEING CONNECTED INTERMEDIATE TO SAID EMITTER REGION AND TO A POINT BETWEEN SAID FIRST DIODE AND SAID FIRST TERMINAL
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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |