Patent US3233195A successfully refreshed from Google Patents.
US3233195A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-state circuits
Assignee: National Research Development Corp UK
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Filing: 1961-02-08
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Granted: 1966-02-01
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Expires: 1981-02-08
Abstract
No abstract record available.
Inventors
- 👤 Barraclough Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:56
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/10; H01P1/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
167 words
AN A.C. TWO-STATE CIRCUIT COMPRISING AN A.C. TRANSMISSION LINE WHICH DIVIDES INTO TWO BRANCHES, TWO DIODE DEVICES OF THE VARIABLE REACTANCE TYPE, EACH HAVING A RESPECTIVE BIAS CIRCUIT AND BEING CONNECTED IN A DIFFERENT BRANCH FOR CONTROLLING THE TRANSMISSION OF A.C. ENERGY ALONG IT, AND TWO DETECTING MEANS ONE CONNECTED TO EACH BRANCH OF THE LINE FOR DETECTING A.C. ENERGY IN THAT BRANCH, EACH DETECTING MEANS BEING FURTHER CONNECTED TO A BIAS CIRCUIT OF THE DIODE DEVICE OF THE BRANCH IN WHICH THE OTHER DETECTING MEANS IS CONNECTED FOR CONTROLLED THE REACTANCE OF THE DEVICE OF ONE BRANCH ACCORDING TO THE PRESENCE AND ABSENCE OF A SIGNAL IN THE OTHER BRANCH, WHEREBY IN OPERATION A.C. WAVES TRANSMITTED ALONG ONE BRANCH FROM THE TRANSMISSION LINE ARE THEMSELVES EFFECTIVE IN CONTROLLING THE REACTANCE OF THE VARIABLE REACTANCE DEVICE OF THE OTHER BRANCH TO ENSURE THAT NO TRANSMISSION TAKES PLACE DOWN THAT OTHER BRANCH, AND TWO STABLES STATES ARE POSSIBLE IN EACH OF WHICH TRANSMISSION OCCURS IN A DIFFERENT BRANCH.
Claim 2
Dependent Claim
167 words
AN A.C. TWO-STATE CIRCUIT COMPRISING AN A.C. TRANSMISSION LINE WHICH DIVIDES INTO TWO BRANCHES, TWO DIODE DEVICES OF THE VARIABLE REACTANCE TYPE, EACH HAVING A RESPECTIVE BIAS CIRCUIT AND BEING CONNECTED IN A DIFFERENT BRANCH FOR CONTROLLING THE TRANSMISSION OF A.C. ENERGY ALONG IT, AND TWO DETECTING MEANS ONE CONNECTED TO EACH BRANCH OF THE LINE FOR DETECTING A.C. ENERGY IN THAT BRANCH, EACH DETECTING MEANS BEING FURTHER CONNECTED TO A BIAS CIRCUIT OF THE DIODE DEVICE OF THE BRANCH IN WHICH THE OTHER DETECTING MEANS IS CONNECTED FOR CONTROLLED THE REACTANCE OF THE DEVICE OF ONE BRANCH ACCORDING TO THE PRESENCE AND ABSENCE OF A SIGNAL IN THE OTHER BRANCH, WHEREBY IN OPERATION A.C. WAVES TRANSMITTED ALONG ONE BRANCH FROM THE TRANSMISSION LINE ARE THEMSELVES EFFECTIVE IN CONTROLLING THE REACTANCE OF THE VARIABLE REACTANCE DEVICE OF THE OTHER BRANCH TO ENSURE THAT NO TRANSMISSION TAKES PLACE DOWN THAT OTHER BRANCH, AND TWO STABLES STATES ARE POSSIBLE IN EACH OF WHICH TRANSMISSION OCCURS IN A DIFFERENT BRANCH.
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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |