US3268740A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shift register with additional storage means connected between register stages for establishing temporary master-slave relationship
Assignee: Nortel Networks Ltd
•
Filing: 1963-11-06
•
Granted: 1966-08-23
•
Expires: 1983-11-06
Abstract
No abstract record available.
Inventors
- 👤 Rywak John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:11
CPC Classifications
G; G11; G11C; G11C19/00; G11C19/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A SHIFT REGISTER HAVING FIRST AND SECOND BISTABLE REGISTER ELEMENTS, A BISTABLE STORAGE ELEMENT, FIRST GATE MEANS FOR INITIALLY TRANSFERRING THE STATE OF THE FIRST REGISTER ELEMENT TO THE STORAGE ELEMENT, AND SECOND GATE MEANS FOR SUBSEQUENTLY TRANSFERRING THE STATE OF THE STORAGE ELEMENT TO THE SECOND REGISTER ELEMENT; SAID SECOND GATE MEANS INCLUDING MEANS FOR MAINTAINING A MASTER-SLAVE RELATIONSHIP BETWEEN THE STORAGE ELEMENT AND THE SECOND REGISTER ELEMENT AFTER SAID SUBSEQUENT TRANSFER AND UNTIL THE NEXT TRANSFER FROM THE FIRST REGISTER ELEMENT TO THE STORAGE ELEMENT.
Claim 2
Dependent Claim
87 words
A SHIFT REGISTER HAVING FIRST AND SECOND BISTABLE REGISTER ELEMENTS, A BISTABLE STORAGE ELEMENT, FIRST GATE MEANS FOR INITIALLY TRANSFERRING THE STATE OF THE FIRST REGISTER ELEMENT TO THE STORAGE ELEMENT, AND SECOND GATE MEANS FOR SUBSEQUENTLY TRANSFERRING THE STATE OF THE STORAGE ELEMENT TO THE SECOND REGISTER ELEMENT; SAID SECOND GATE MEANS INCLUDING MEANS FOR MAINTAINING A MASTER-SLAVE RELATIONSHIP BETWEEN THE STORAGE ELEMENT AND THE SECOND REGISTER ELEMENT AFTER SAID SUBSEQUENT TRANSFER AND UNTIL THE NEXT TRANSFER FROM THE FIRST REGISTER ELEMENT TO THE STORAGE ELEMENT.
References Cited (Backward Citations)
US3127535A
Cited
US3097312A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |