US3235789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage regulators
Assignee: Individual
•
Filing: 1961-07-10
•
Granted: 1966-02-15
•
Expires: 1981-07-10
Abstract
No abstract record available.
Inventors
- 👤 Bert K Naster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:21
CPC Classifications
G; G05; G05F; G05F3/00; G05F3/02; G05F3/04; G05F3/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
79 words
IN A VOLTAGE REGULATOR, THE COMBINATION COMPRISING A TRANSFORMER HAVING A MAGNETIC CORE, A FIRST WINDING ON A FIRST PORTION OF SAID CORE, A SECOND WINDING ON A SECOND PORTION OF SAID CORE AND LOOSELY COUPLED TO SAID FIRST WINDING, INPUT MEANS FOR PRODUCING A VOLTAGE ACROSS SAID FIRST WINDING, A CAPACITOR, AND A CLOSED CIRCUIT CONNECTING SAID CAPACITOR AND SAID SECOND WINDING IN SERIES WITH AT LEAST A PORTION OF SAID FIRST WINDING TO FORM A CLOSED LOOP.
References Cited (Backward Citations)
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US2546968A
Cited
US2791726A
Cited
US2694177A
Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-14 | 1969-08-16 | 1970-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-14 | 1973-08-16 | 1974-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-14 | 1977-08-16 | 1978-02-15 | $7700.00 | Window Closed / Lapsed |