US4346376B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
US4346376B1 - - Google Patents
Assignee: Bell Telephone Laboratories Inc
•
Filing: 1980-04-16
•
Granted: 1988-12-13
•
Expires: 2000-04-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:32
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/94; H03K17/965; H03K17/968; G; G06; G06F; G06F3/00; G06F3/01; G06F3/03; G06F3/033; G06F3/037; H01; H01J; H01J29/00; H01J29/86; H01J29/89; H01J29/892; G02; G02B; G02B6/00; G02B6/24; G02B6/26; G02B6/28; G02B6/2804; G02B6/2852; G06F2203/00; G06F2203/041; G06F2203/04109
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1991-12-13 | 1992-06-13 | 1992-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-12-13 | 1996-06-13 | 1996-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-12-13 | 2000-06-13 | 2000-12-13 | $7700.00 | Window Closed / Lapsed |