US3525922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Current-balancing systems for parallel diodes
Assignee: Individual
•
Filing: 1968-12-23
•
Granted: 1970-08-25
•
Expires: 1988-12-23
Abstract
No abstract record available.
Inventors
- 👤 Harold G Abbey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:59
CPC Classifications
H; H02; H02M; H02M7/00; H02M7/02; H02M7/04; H02M7/06; H02M7/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2994028A
Cited
US3018380A
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US3013200A
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US3170106A
Cited
US3270271A
Cited
US3229187A
Cited
US3334289A
Cited
US3467851A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-24 | 1974-02-23 | 1974-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-24 | 1978-02-23 | 1978-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-24 | 1982-02-23 | 1982-08-25 | $7700.00 | Window Closed / Lapsed |