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US3069679A
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Multiplex communication systems
Assignee: Westinghouse Electric Corp
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Filing: 1959-04-22
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Granted: 1962-12-18
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Expires: 1979-04-22
Abstract
No abstract record available.
Inventors
- 👤 Harold E Sweeney
- 👤 Jr Charles W Baugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:18
CPC Classifications
H; H04; H04H; H04H20/00; H04H20/86; H04H20/88; H04J; H04J9/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |