US3156904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Passive transistor-magnetic core switching system
Assignee: Individual
•
Filing: 1960-09-30
•
Granted: 1964-11-10
•
Expires: 1980-09-30
Abstract
No abstract record available.
Inventors
- 👤 Hugo M Beck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:33
CPC Classifications
G; G11; G11C; G11C19/00; G11C19/02; G11C19/04; H; H03; H03K; H03K19/00; H03K19/02; H03K19/16; H03K3/00; H03K3/02; H03K3/45
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
131 words
A REGISTER SHIFT CIRCUIT FOR TRANSFERRING INFORMATION WITH A MINIMUM OF ENERGY CONSUMPTION COMPRISING: FIRST AND SECOND CORES, EACH CORE HAVING AN INPUT WINDING, AN OUTPUT WINDING AND AN ADVANCE WINDING; DRIVE MEANS TO ALTERNATELY ENERGIZE THE ADVANCE WINDINGS OF SAID FIRST AND SECOND COILS IN ORDERED SEQUENCE AND IN PREDETERMINED TIME RELATIONSHIP WITH THE SIGNALS RECEIVED IN THE INPUT WINDING OF SAID FIRST CORE; A PASSIVE TRANSISTOR HAVING EMITTER, BASE AND COLLECTOR LEADS; CIRCUIT MEANS CONNECTING SAID TRANSISTOR BASE LEAD TO GROUND, SAID TRANSISTOR EMITTER LEAD TO THE OUTPUT WINDING OF SAID FIRST CORE AND SAID TRANSISTOR COLLECTOR LEAD TO THE INPUT WINDING OF SAID SECOND CORE; WHEREBY SAID TRANSISTOR DECOUPLES SAID FIRST AND SECOND CORES WHEN THE ADVANCE WINDING OF SAID SECOND COIL IS ENERGIZED BY SAID DRIVE 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) | 1967-11-10 | 1968-05-11 | 1968-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-10 | 1972-05-11 | 1972-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-10 | 1976-05-11 | 1976-11-10 | $7700.00 | Window Closed / Lapsed |