US4534039B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dataset powered by control and data signals from data terminal
Assignee: RAD DATA COMMUNICATIONS Inc
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Filing: 1983-02-16
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Granted: 1995-04-18
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Expires: 2003-02-16
Abstract
No abstract record available.
Inventors
- 👤 David E Dodds
- 👤 Ludo A Bertsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:20
CPC Classifications
H; H04; H04L; H04L12/00; H04L12/02; H04L12/10; H04B; H04B3/00; H04B3/02; H04B3/28; H04L25/00; H04L25/02; H04L25/08
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) | 1998-04-17 | 1998-10-17 | 1999-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-04-17 | 2002-10-17 | 2003-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-04-17 | 2006-10-17 | 2007-04-18 | $7700.00 | Window Closed / Lapsed |