Patent US2522639A successfully refreshed from Google Patents.
Patent US3174137A successfully refreshed from Google Patents.
US3174137A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical gating apparatus
Assignee: Honeywell Inc
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Filing: 1959-12-07
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Granted: 1965-03-16
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Expires: 1979-12-07
Abstract
No abstract record available.
Inventors
- 👤 Moiz B Khambaty
- 👤 Strohmeier Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:13
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/02; G11C11/06; G11C11/06007; G11C11/06014
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
94 words
IN COMBINATION, A COINCIDENT CURRENT MEMORY MEANS HAVING A SENSE WINDING, A TRANSFORMER HAVING A CORE WITH A SUBSTANTIALLY LINEAR HYSTERESIS CHARACTERISTIC, SAID TRANSFORMER INCLUDING A PRIMARY WINDING AND FIRST AND SECOND SECONDARY WINDINGS, EACH OF SAID SECOND SECONDARY WINDINGS HAVING A CENTER TAP, SAID SENSE WINDING BEING CONNECTED IN SHUNT ACROSS SAID PRIMARY WINDING, AND OUTPUT AMPLIFYING DEVICE CONNECTED TO SAID FIRST SECONDARY WINDING, AND A SWITCH CONNECTED TO THE ENDS OF SAID SECOND SECONDARY WINDING, SAID SWITCH BEING NORMALLY CLOSED EXCEPT WHEN A SIGNAL IS TO BE READ FROM SAID SENSE WINDING.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |