Patent US3072822A successfully refreshed from Google Patents.
US3072822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emission current regulator
Assignee: Individual
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Filing: 1961-05-19
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Granted: 1963-01-08
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Expires: 1981-05-19
Abstract
No abstract record available.
Inventors
- 👤 Julian C Holmes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:29
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/02; H02M7/04; H02M7/12; H02M7/21; H02M7/217; H02M7/2173
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
AN EMISSION CURRENT REGULATOR FOR AN ELECTRON DISCHARGE DEVICE HAVING A THERMIONIC FILAMENT COMPRISING A FIRST POWER SOURCE FOR SUPPLYING RECTANGULAR A.-C. POWER OF A SELECTED AMPLITUDE, RECTIFYING MEANS CONNECTED BETWEEN SAID POWER SOURCE AND SAID FILAMENT, SWITCHING MEANS CONNECTED BETWEEN SAID FIRST POWER SOURCE AND SAID FILAMENT FOR PROVIDING CONTROLLED INTERRUPTION OF POWER TO SAID FILAMENT, A SECOND POWER SOURCE FOR SUPPLYING D.-C. POWER OF A SELECTED AMPLITUDE, AND COMPARATOR MEANS CONNECTED IN PARALLEL WITH SAID SECOND POWER SOURCE AND IN SERIES WITH SAID ELECTRON DISCHARGE DEVICE AND SAID SWITCHING MEANS FOR ESTABLISHING A STANDARD CURRENT AND COMPARING SAID CURRENT WITH THE CURRENT THROUGH SAID ELECTRON DISCHARGE DEVICE.
Claim 2
Dependent Claim
109 words
AN EMISSION CURRENT REGULATOR FOR AN ELECTRON DISCHARGE DEVICE HAVING A THERMIONIC FILAMENT COMPRISING A FIRST POWER SOURCE FOR SUPPLYING RECTANGULAR A.-C. POWER OF A SELECTED AMPLITUDE, RECTIFYING MEANS CONNECTED BETWEEN SAID POWER SOURCE AND SAID FILAMENT, SWITCHING MEANS CONNECTED BETWEEN SAID FIRST POWER SOURCE AND SAID FILAMENT FOR PROVIDING CONTROLLED INTERRUPTION OF POWER TO SAID FILAMENT, A SECOND POWER SOURCE FOR SUPPLYING D.-C. POWER OF A SELECTED AMPLITUDE, AND COMPARATOR MEANS CONNECTED IN PARALLEL WITH SAID SECOND POWER SOURCE AND IN SERIES WITH SAID ELECTRON DISCHARGE DEVICE AND SAID SWITCHING MEANS FOR ESTABLISHING A STANDARD CURRENT AND COMPARING SAID CURRENT WITH THE CURRENT THROUGH SAID ELECTRON DISCHARGE DEVICE.
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |