Patent US3231876A successfully refreshed from Google Patents.
US3231876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical switching means
Assignee: International Business Machines Corp
•
Filing: 1962-06-27
•
Granted: 1966-01-25
•
Expires: 1982-06-27
Abstract
No abstract record available.
Inventors
- 👤 Albert W Vinal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:25
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/60; H03K17/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
AN ELECTRICAL SAMPLING SWITCH MEANS COMPRISING PLURAL PRIMARY WINDINGS AND A SINGLE SECONDARY WINDING, EACH OF SAID PRIMARY WINDINGS BEING CENTER TAPPED, THE EXTREMITIES OF EACH OF SAID PRIMARY WINDINGS BEING CONNECTED TO SAMPLE A DIFFERENT ELECTRICAL SIGNAL, A UNIDIRECTIONAL DEVICE CONNECTED BETWEEN EACH EXTREMITY OF EACH PRIMARY WINDING AND EACH ELECTRICAL SIGNAL TO BE SAMPLED, EACH OF SAID UNIDIRECTIONAL DEVICES BEING ORIENTED TO NORMALLY BE BACKBIASED, A VOLTAGE BIT GATE GENERATOR FOR SUCCESSIVELY GENERATING MUTUALLY EXCLUSIVE VOLTAGE GATES AND APPLYING EACH TO THE CENTER TAP OF A DIFFERENT PRIMARY WINDING.
Claim 2
Dependent Claim
91 words
AN ELECTRICAL SAMPLING SWITCH MEANS COMPRISING PLURAL PRIMARY WINDINGS AND A SINGLE SECONDARY WINDING, EACH OF SAID PRIMARY WINDINGS BEING CENTER TAPPED, THE EXTREMITIES OF EACH OF SAID PRIMARY WINDINGS BEING CONNECTED TO SAMPLE A DIFFERENT ELECTRICAL SIGNAL, A UNIDIRECTIONAL DEVICE CONNECTED BETWEEN EACH EXTREMITY OF EACH PRIMARY WINDING AND EACH ELECTRICAL SIGNAL TO BE SAMPLED, EACH OF SAID UNIDIRECTIONAL DEVICES BEING ORIENTED TO NORMALLY BE BACKBIASED, A VOLTAGE BIT GATE GENERATOR FOR SUCCESSIVELY GENERATING MUTUALLY EXCLUSIVE VOLTAGE GATES AND APPLYING EACH TO THE CENTER TAP OF A DIFFERENT PRIMARY WINDING.
References Cited (Backward Citations)
CA591737A
Cited
US2958857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-24 | 1969-07-26 | 1970-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-24 | 1973-07-26 | 1974-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-24 | 1977-07-26 | 1978-01-25 | $7700.00 | Window Closed / Lapsed |