US3353083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regulated ac-dc power supply
Assignee: Individual
•
Filing: 1963-06-05
•
Granted: 1967-11-14
•
Expires: 1983-06-05
Abstract
No abstract record available.
Inventors
- 👤 Greenberg Sol
- 👤 Gautherin George
- 👤 Forrest Irving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:44
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/02; H02M7/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2981884A
Cited
US3105933A
Cited
US3101442A
Cited
US3060368A
Cited
US3219912A
Cited
US3213351A
Cited
US3192467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |