US3469112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage circuit utilizing differential amplifier stages
Assignee: Westinghouse Canada Inc
•
Filing: 1966-12-01
•
Granted: 1969-09-23
•
Expires: 1986-12-01
Abstract
No abstract record available.
Inventors
- 👤 Edward Hands
- 👤 Graham Henstock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:33
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/60; G; G11; G11C; G11C27/00; G11C27/02; G11C27/024; G11C27/026; H03G; H03G3/00; H03G3/20; H03L; H03L7/00; H03L7/06; H03L7/08; H03L7/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
A STORAGE CIRCUIT COMPRISING: A FIRST DIFFERENTIAL AMPLIFIER; INPUT MEANS OPERATIVELY CONNECTED TO A FIRST INPUT OF SAID FIRST DIFFERENTIAL AMPLIFIER TO DEFINING A DESIRED STORAGE LEVEL; STORAGE MEANS OPERATIVELY CONNECTED TO A SECOND INPUT OF SAID FIRST DIFFERENTIAL AMPLIFIER; A SECOND DIFFERENTIAL AMPLIFIER RECEIVING AS INPUTS THERETO THE DIFFERENTIAL OUTPUT OF SAID FIRST DIFFERENTIAL AMPLIFIER; AND SELECTION MEANS FOR CONNECTING A FIRST OUTPUT OF SAID SECOND DIFFERENTIAL AMPLIFIER TO SAID SECOND INPUT OF SAID FIRST DIFFERENTIAL AMPLIFIER AND DISCONNECTING A SECOND OUTPUT OF SAID SECOND DIFFERENTIAL AMPLIFIER FROM SAID FIRST INPUT OF SAID SECOND DIFFERIANTAL AMPLIFIER SO THAT SAID STORAGE MEANS IS ESTABLISHED AT SAID DESIRED LEVEL, AND CONNECTING SAID SECOND OUTPUT OF SAID SECOND DIFFERENTIAL AMPLIFIER TO SAID FIRST INPUT OF SAID DIFFERENTIAL AMPLIFIER TO SAID FIRST NECTING SAID FIRST OUTPUT OF SAID SECOND DIFFERENTIAL AMPLIFIER FROM SAID SECOND INPUT OF SAID FIRST DIFFERENTIAL AMPLIFIER SO THAT SAID DESIRED STORAGE LEVEL IS MAINTAINED AT SAID STORAGE MEANS.
Claim 2
Dependent Claim
159 words
A STORAGE CIRCUIT COMPRISING: A FIRST DIFFERENTIAL AMPLIFIER; INPUT MEANS OPERATIVELY CONNECTED TO A FIRST INPUT OF SAID FIRST DIFFERENTIAL AMPLIFIER TO DEFINING A DESIRED STORAGE LEVEL; STORAGE MEANS OPERATIVELY CONNECTED TO A SECOND INPUT OF SAID FIRST DIFFERENTIAL AMPLIFIER; A SECOND DIFFERENTIAL AMPLIFIER RECEIVING AS INPUTS THERETO THE DIFFERENTIAL OUTPUT OF SAID FIRST DIFFERENTIAL AMPLIFIER; AND SELECTION MEANS FOR CONNECTING A FIRST OUTPUT OF SAID SECOND DIFFERENTIAL AMPLIFIER TO SAID SECOND INPUT OF SAID FIRST DIFFERENTIAL AMPLIFIER AND DISCONNECTING A SECOND OUTPUT OF SAID SECOND DIFFERENTIAL AMPLIFIER FROM SAID FIRST INPUT OF SAID SECOND DIFFERIANTAL AMPLIFIER SO THAT SAID STORAGE MEANS IS ESTABLISHED AT SAID DESIRED LEVEL, AND CONNECTING SAID SECOND OUTPUT OF SAID SECOND DIFFERENTIAL AMPLIFIER TO SAID FIRST INPUT OF SAID DIFFERENTIAL AMPLIFIER TO SAID FIRST NECTING SAID FIRST OUTPUT OF SAID SECOND DIFFERENTIAL AMPLIFIER FROM SAID SECOND INPUT OF SAID FIRST DIFFERENTIAL AMPLIFIER SO THAT SAID DESIRED STORAGE LEVEL IS MAINTAINED AT SAID STORAGE MEANS.
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) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |