US3358236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Programmed timing circuits
Assignee: Unisys Corp
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Filing: 1965-04-12
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Granted: 1967-12-12
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Expires: 1985-04-12
Abstract
No abstract record available.
Inventors
- 👤 Frank W Weber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:39
CPC Classifications
H; H03; H03K; H03K5/00; H03K5/13; H03K5/135; H03K19/00; H03K19/02; H03K19/08; H03K19/082
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
AN ELECTRICAL CIRCUIT COMPRISING: A NORMALLY OPEN INPUT SWITCH HAVING A FIRST INPUT TERMINAL, THE INPUT SWITCH BEING CLOSED IN RESPONSE TO AN INPUT SIGNAL APPLIED TO THE FIRST INPUT TERMINAL, A NORMALLY CLOSED OUTPUT SWITCH COUPLED TO THE INPUT SWITCH, MEANS COUPLED TO THE OUTPUT SWITCH FOR OPENING THE OUTPUT SWITCH IN RESPONSE TO THE CLOSING OF THE INPUT SWITCH, TIMING CIRCUIT MEANS COUPLED TO BOTH THE INPUT SWITCH AND THE OUTPUT SWITCH AND HAVING A FIRST AND A SECOND CONTROL CIRCUIT ELEMENT AND A SECOND INPUT TERMINAL, MEANS COUPLED TO THE OUTPUT SWITCH FOR MAINTAINING THE OUTPUT SWITCH IN ITS OPEN CONDITION FOR A PERIOD OF TIME GOVERNED BY THE TIMING CIRCUIT MEANS, MEANS COUPLED TO THE TIMING CIRCUIT MEANS FOR ISOLATING THE FIRST CONTROL CIRCUIT ELEMENT FROM THE REMAINDER OF THE TIMING CIRCUIT MEANS IN RESPONSE TO A FIRST SIGNAL APPLIED TO THE SECOND INPUT TERMINAL, AND
Claim 2
Dependent Claim
150 words
AN ELECTRICAL CIRCUIT COMPRISING: A NORMALLY OPEN INPUT SWITCH HAVING A FIRST INPUT TERMINAL, THE INPUT SWITCH BEING CLOSED IN RESPONSE TO AN INPUT SIGNAL APPLIED TO THE FIRST INPUT TERMINAL, A NORMALLY CLOSED OUTPUT SWITCH COUPLED TO THE INPUT SWITCH, MEANS COUPLED TO THE OUTPUT SWITCH FOR OPENING THE OUTPUT SWITCH IN RESPONSE TO THE CLOSING OF THE INPUT SWITCH, TIMING CIRCUIT MEANS COUPLED TO BOTH THE INPUT SWITCH AND THE OUTPUT SWITCH AND HAVING A FIRST AND A SECOND CONTROL CIRCUIT ELEMENT AND A SECOND INPUT TERMINAL, MEANS COUPLED TO THE OUTPUT SWITCH FOR MAINTAINING THE OUTPUT SWITCH IN ITS OPEN CONDITION FOR A PERIOD OF TIME GOVERNED BY THE TIMING CIRCUIT MEANS, MEANS COUPLED TO THE TIMING CIRCUIT MEANS FOR ISOLATING THE FIRST CONTROL CIRCUIT ELEMENT FROM THE REMAINDER OF THE TIMING CIRCUIT MEANS IN RESPONSE TO A FIRST SIGNAL APPLIED TO THE SECOND INPUT TERMINAL, AND
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) | 1970-12-11 | 1971-06-12 | 1971-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-11 | 1975-06-12 | 1975-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-11 | 1979-06-12 | 1979-12-12 | $7700.00 | Window Closed / Lapsed |