US3257566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Complementary controlled rectifier switch
Assignee: Hoffman Electronics Corp
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Filing: 1961-08-21
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Granted: 1966-06-21
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Expires: 1981-08-21
Abstract
No abstract record available.
Inventors
- 👤 Richard L White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:25
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/56; H03K17/72; H03K17/725
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A FULL-WAVE SWITCH FOR ALTERNATING CURRENT LOADS, COMPRISING A PNPN CONTROLLING RECTIFIER HAVING AN ANODE, A CATHODE AND A CONTROL ELECTRODE; AN NPNP CONTROLLED RECTIFIER HAVING AN ANODE, A CATHODE AND A CONTROL ELECTRODE; SAID RECTIFIERS HAVING THEIR RESPECTIVE ANODE-CATHODE PATHS REVERSELY CONNECTED IN PARALLEL WITH ONE ANOTHER AND TOGETHER IN SERIES WITH A LOAD AND AN ALTERNATING CURRENT SUPPLY; AND A COMMON CONTROL CIRCUIT CONNECTED BETWEEN ONE TERMINAL OF THE ALTERNATING CURRENT SUPPLY AND BOTH OF SAID CONTROL ELECTRODES.
Claim 2
Dependent Claim
80 words
A FULL-WAVE SWITCH FOR ALTERNATING CURRENT LOADS, COMPRISING A PNPN CONTROLLING RECTIFIER HAVING AN ANODE, A CATHODE AND A CONTROL ELECTRODE; AN NPNP CONTROLLED RECTIFIER HAVING AN ANODE, A CATHODE AND A CONTROL ELECTRODE; SAID RECTIFIERS HAVING THEIR RESPECTIVE ANODE-CATHODE PATHS REVERSELY CONNECTED IN PARALLEL WITH ONE ANOTHER AND TOGETHER IN SERIES WITH A LOAD AND AN ALTERNATING CURRENT SUPPLY; AND A COMMON CONTROL CIRCUIT CONNECTED BETWEEN ONE TERMINAL OF THE ALTERNATING CURRENT SUPPLY AND BOTH OF SAID CONTROL ELECTRODES.
References Cited (Backward Citations)
US2745038A
Cited
US3114097A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-06-20 | 1969-12-20 | 1970-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-20 | 1973-12-20 | 1974-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-20 | 1977-12-20 | 1978-06-21 | $7700.00 | Window Closed / Lapsed |