Patent US3229117A successfully refreshed from Google Patents.
US3229117A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Logical circuits
Assignee: Avery Weigh Tronix Ltd
•
Filing: 1962-08-02
•
Granted: 1966-01-11
•
Expires: 1982-08-02
Abstract
No abstract record available.
Inventors
- 👤 Chilton John Moorhouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:06
CPC Classifications
G; G06; G06F; G06F7/00; G06F7/38; G06F7/48; G06F7/50; G06F7/501; G06F7/502; G06F7/491; G06F7/492; G06F7/493; G06F7/494; H; H03; H03K; H03K19/00; H03K19/20; H03K19/21; H03K19/212; G06F2207/00; G06F2207/492; G06F2207/4921; G06F2207/4924
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A HALF ADDER CIRCUIT COMPRISING AN AND CIRCUIT AND THREE NOR CIRCUITS EACH OF WHICH CONTAINS TWO INPUT TERMINALS AND AN OUTPUT TERMINAL; MEANS CONNECTING THE INPUT TERMINALS OF THE AND CIRCUIT AND THE FIRST NOR CIRCUIT IN PARALLEL; MEANS CONNECTING ONE OF THE INPUT TERMINALS OF THE SECOND NOR CIRCUIT TO THE OUTPUT TERMINAL OF THE AND CIRCUIT AND THE OTHER INPUT TERMINAL OF SAID SECOND NOR CIRCUIT TO THE OUTPUT TERMINAL OF THE FIRST NOR CIRCUIT; MEANS CONNECTING THE TWO INPUT TERMINALS OF THE THIRD NOR CIRCUIT TO THE OUTPUT TERMINALS OF THE FIRST AND SECOND NOR CIRCUITS, THE OUTPUT TERMINAL OF THE SECOND NOR CIRCUIT CONSTITUTING THE "SUM" OUTPUT TERMINAL; AND THE OUTPUT TERMINAL OF THE THIRD NOR CIRCUIT CONSTITUTING THE "CARRY" OUTPUT TERMINAL OF THE HALF ADDER CIRCUIT.
Claim 2
Dependent Claim
132 words
A HALF ADDER CIRCUIT COMPRISING AN AND CIRCUIT AND THREE NOR CIRCUITS EACH OF WHICH CONTAINS TWO INPUT TERMINALS AND AN OUTPUT TERMINAL; MEANS CONNECTING THE INPUT TERMINALS OF THE AND CIRCUIT AND THE FIRST NOR CIRCUIT IN PARALLEL; MEANS CONNECTING ONE OF THE INPUT TERMINALS OF THE SECOND NOR CIRCUIT TO THE OUTPUT TERMINAL OF THE AND CIRCUIT AND THE OTHER INPUT TERMINAL OF SAID SECOND NOR CIRCUIT TO THE OUTPUT TERMINAL OF THE FIRST NOR CIRCUIT; MEANS CONNECTING THE TWO INPUT TERMINALS OF THE THIRD NOR CIRCUIT TO THE OUTPUT TERMINALS OF THE FIRST AND SECOND NOR CIRCUITS, THE OUTPUT TERMINAL OF THE SECOND NOR CIRCUIT CONSTITUTING THE "SUM" OUTPUT TERMINAL; AND THE OUTPUT TERMINAL OF THE THIRD NOR CIRCUIT CONSTITUTING THE "CARRY" OUTPUT TERMINAL OF THE HALF ADDER CIRCUIT.
References Cited (Backward Citations)
US3023965A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-10 | 1969-07-12 | 1970-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-10 | 1973-07-12 | 1974-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-10 | 1977-07-12 | 1978-01-11 | $7700.00 | Window Closed / Lapsed |