US3506918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data channel equalization detector
Assignee: Xerox Corp
•
Filing: 1966-12-27
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Granted: 1970-04-14
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Expires: 1986-12-27
Abstract
No abstract record available.
Inventors
- 👤 Donald A Perreault
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:10
CPC Classifications
H; H04; H04L; H04L25/00; H04L25/02; H04L25/03; H04L25/03006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1743141A
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US1968164A
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US2678383A
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US2719270A
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GB865572A
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US3178698A
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US3213196A
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US3335223A
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US3334301A
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US3287646A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-13 | 1973-10-13 | 1974-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-13 | 1977-10-13 | 1978-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-13 | 1981-10-13 | 1982-04-14 | $7700.00 | Window Closed / Lapsed |