US3428918A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiplexer channel units
Assignee: United States Department of the Army
•
Filing: 1966-05-26
•
Granted: 1969-02-18
•
Expires: 1986-05-26
Abstract
No abstract record available.
Inventors
- 👤 George L Matthaei
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:22
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/20; H01P1/213
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1469832A
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CA683068A
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US2432093A
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US2588226A
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US2816270A
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US3345589A
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US3327255A
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US3292075A
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US3348173A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |