US4424514A
Expired / Lapsed
US
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Decoder for transmitted message activation code
Assignee: Motorola Solutions Inc
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Filing: 1981-10-13
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Granted: 1984-01-03
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Expires: 2001-10-13
Abstract
Abstract A decoder for a receiver which after receiving its address code waits for an activation code before enabling its message output in anticipation of receiving a transmitted message. Alternatively the receiver, after it receives its address, may wait for an activation code before alerting or outputting an internally generated message.
Inventors
- 👤 Robert D Fennell
- 👤 David F Bailey
- 👤 Jr Charles J Ganucheau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:31
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/24; H04B7/26; H04W; H04W88/00; H04W88/02; H04W88/022; H04W88/025; H04W88/026; Y; Y02; Y02D; Y02D30/00; Y02D30/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-01-02 | 1987-07-04 | 1988-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-01-02 | 1991-07-04 | 1992-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-01-02 | 1995-07-04 | 1996-01-03 | $7700.00 | Window Closed / Lapsed |