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US3475560A
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Time multiplex communication system with provision for priority assignment of waiting calls
Assignee: Siemens AG
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Filing: 1965-09-22
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Granted: 1969-10-28
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Expires: 1985-09-22
Abstract
No abstract record available.
Inventors
- 👤 Otto Kneisel
- 👤 Horst Honold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:17
CPC Classifications
H; H04; H04Q; H04Q11/00; H04Q11/04; A; A47; A47H; A47H13/00; A47H13/14; A47H13/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2704788A
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US2851536A
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US2757240A
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US2923777A
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US3204039A
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US3263030A
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US3297829A
Cited
US3334191A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |