Patent US3059753A successfully refreshed from Google Patents.
US4479083B1
Expired / Lapsed
US
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DC power system having battery voltage equalizer circuit
Assignee: VANNACQ Inc A CORP OF OHIO
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Filing: 1982-09-30
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Granted: 1998-09-01
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Expires: 2002-09-30
Abstract
No abstract record available.
Inventors
- 👤 James D Sullivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:58
CPC Classifications
H; H02; H02J; H02J7/00; H02J7/14; H02J7/1423; H02J7/34; H02J7/342; H02J7/50; H02J7/52; H02J7/56; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-08-31 | 2002-03-02 | 2002-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-08-31 | 2006-03-02 | 2006-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-08-31 | 2010-03-02 | 2010-09-01 | $7700.00 | Window Closed / Lapsed |