US3453525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage and current regulated power supply circuit including self-protective features
Assignee: California Institute Research Foundation
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Filing: 1968-04-05
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Granted: 1969-07-01
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Expires: 1988-04-05
Abstract
No abstract record available.
Inventors
- 👤 Nathaniel Motta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:39
CPC Classifications
H; H02; H02H; H02H3/00; H02H3/02; H02H3/06; H02H3/07; H02J; H02J7/00; H02J7/90; H02J7/94
Claims Analysis
Total Claims: 0
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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) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |