US3405342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Voltage regulator for d.c. inverter type power supply
Assignee: Varo Inc
•
Filing: 1966-08-01
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Granted: 1968-10-08
•
Expires: 1986-08-01
Abstract
No abstract record available.
Inventors
- 👤 Bruce L Wilkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:03
CPC Classifications
H; H02; H02M; H02M3/00; H02M3/22; H02M3/24; H02M3/28; H02M3/325; H02M3/335; H02M3/337; H02M3/3376; H02M3/3378; G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/40; G05F1/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2990516A
Cited
FR1190868A
Cited
US3128438A
Cited
US3219907A
Cited
US3222618A
Cited
US3317856A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |