US3411014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regulated power supplies combined in series voltage aiding and shunt current aiding combinations
Assignee: Forbro Design Corp
•
Filing: 1966-06-16
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Granted: 1968-11-12
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Expires: 1986-06-16
Abstract
No abstract record available.
Inventors
- 👤 Kupferberg Kenneth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:37
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/46; G05F1/56; G05F1/577
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2815480A
Cited
US2773200A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |