US4933575B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
US4933575B1 - - Google Patents
Assignee: NEC Electronics Corp
•
Filing: 1989-02-14
•
Granted: 1992-07-21
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Expires: 2009-02-14
Abstract
No abstract record available.
Inventors
- 👤 Aso Akira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:17
CPC Classifications
H; H03; H03K; H03K19/00; H03K19/02; H03K19/173; H03K19/1733; H03K3/00; H03K3/02; H03K3/027; H03K3/037
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) | 1995-07-21 | 1996-01-20 | 1996-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-07-21 | 2000-01-20 | 2000-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-07-21 | 2004-01-20 | 2004-07-21 | $7700.00 | Window Closed / Lapsed |