US4366479B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
US4366479B1 - - Google Patents
Assignee: Hitachi Ltd
•
Filing: 1981-02-06
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Granted: 1992-03-10
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Expires: 2001-02-06
Abstract
No abstract record available.
Inventors
- 👤 Mori Kinji
- 👤 Ihara Hirokazu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:32
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/28; H04L12/42
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) | 1995-03-10 | 1995-09-09 | 1996-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-10 | 1999-09-09 | 2000-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-10 | 2003-09-09 | 2004-03-10 | $7700.00 | Window Closed / Lapsed |