Patent US2141343A successfully refreshed from Google Patents.
US3496536A
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US
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Data link test apparatus
Assignee: Xerox Corp
•
Filing: 1966-05-02
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Granted: 1970-02-17
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Expires: 1986-05-02
Abstract
No abstract record available.
Inventors
- 👤 John L Wheeler
- 👤 Stephen E Townsend
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:37
CPC Classifications
H; H04; H04L; H04L1/00; H04L1/20; H04L1/205
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3040983A
Cited
US3182127A
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US3122704A
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US3142802A
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US3341779A
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US3386081A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-16 | 1973-08-18 | 1974-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-16 | 1977-08-18 | 1978-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-16 | 1981-08-18 | 1982-02-17 | $7700.00 | Window Closed / Lapsed |