US3284696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable power source circuit
Assignee: Hitachi Ltd
•
Filing: 1963-06-18
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Granted: 1966-11-08
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Expires: 1983-06-18
Abstract
No abstract record available.
Inventors
- 👤 Nagata Minoru
- 👤 Abe Katsunobu
- 👤 Takeuchi Kiyoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:53
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/22; H02M3/24; H02M3/28; H02M3/325; H02M3/335; H02M3/338; H02M3/3385; H02M3/3387; H02M3/3388; G; G05; G05F; G05F3/00; G05F3/02; G05F3/08; G05F3/10; G05F3/16; G05F3/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
A STABLE POWER SOURCE CIRCUIT COMPRISING A TRANSFORMER HAVING A PRIMARY WINDING CONNECTED TO THE POWER SOURCE SIDE OF THE CIRCUIT, SECONDARY WINDINGS CONNECTED TO RESPECTIVE LOADS, AND A TERTIARY WINDING FOR CONTROL AND A PAIR OF VOLTAGE REGULATOR DIODES WHICH ARE CONNECTED TOGETHER IN MUTUALLY OPPOSED DIRECTIONS AND ARE FURTHER CONNECTED IN SERIES TO SAID TERTIARY WINDING.
Claim 2
Dependent Claim
58 words
A STABLE POWER SOURCE CIRCUIT COMPRISING A TRANSFORMER HAVING A PRIMARY WINDING CONNECTED TO THE POWER SOURCE SIDE OF THE CIRCUIT, SECONDARY WINDINGS CONNECTED TO RESPECTIVE LOADS, AND A TERTIARY WINDING FOR CONTROL AND A PAIR OF VOLTAGE REGULATOR DIODES WHICH ARE CONNECTED TOGETHER IN MUTUALLY OPPOSED DIRECTIONS AND ARE FURTHER CONNECTED IN SERIES TO SAID TERTIARY WINDING.
References Cited (Backward Citations)
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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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |