Patent US4663584B1 successfully refreshed from Google Patents.
US4663584B1
Expired / Lapsed
US
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Intermediate potential generation circuit
Assignee: Toshiba Corp
•
Filing: 1986-05-30
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Granted: 1996-05-21
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Expires: 2006-05-30
Abstract
No abstract record available.
Inventors
- 👤 Yoshio Okada
- 👤 Mitsuru Shimizu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:47
CPC Classifications
G; G05; G05F; G05F3/00; G05F3/02; G05F3/08; G05F3/10; G05F3/16; G05F3/20; G05F3/24; H; H03; H03H; H03H11/00; H03H11/02; H03H11/24; H03H11/245
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) | 1999-05-21 | 1999-11-20 | 2000-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-05-21 | 2003-11-20 | 2004-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-05-21 | 2007-11-20 | 2008-05-21 | $7700.00 | Window Closed / Lapsed |