US3524124A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Output voltage limiting circuit for a constant current power supply
Assignee: HP Inc
•
Filing: 1968-12-26
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Granted: 1970-08-11
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Expires: 1988-12-26
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Perkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:22
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/46; G05F1/613; H; H02; H02H; H02H9/00; H02H9/04
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) | 1973-08-10 | 1974-02-09 | 1974-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-10 | 1978-02-09 | 1978-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-10 | 1982-02-09 | 1982-08-11 | $7700.00 | Window Closed / Lapsed |