Patent US3268816A successfully refreshed from Google Patents.
US3268816A
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Adaptive communications system incorporating receiver selection of communications channel
Assignee: International Business Machines Corp
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Filing: 1963-11-22
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Granted: 1966-08-23
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Expires: 1983-11-22
Abstract
No abstract record available.
Inventors
- 👤 John R Featherston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:37
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/02; H04B7/04; H04B7/08; H04B7/0802; H04B7/0817; H04B7/082; H04B7/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
IN THE RECEIVING STATION OF A COMMUNICATIONS SYSTEM CAPABLE OF RESPONDING TO A PLURALITY OF CARRIER SIGNALS OF DIFFERENT FREQUENCIES AND HAVING A PLURALITY OF RECEIVERS, ONE TUNED TO EACH CARRIER, MEANS FOR EACH RECEIVER TO DETERMINE MODULATION ON ITS CARRIER, COMPRISING: A PLURALITY OF FILTERS TUNED TO SECTIONS OF THE FREQUENCY SPECTRUM OF THE MODULATED CARRIER;
Claim 2
Dependent Claim
57 words
IN THE RECEIVING STATION OF A COMMUNICATIONS SYSTEM CAPABLE OF RESPONDING TO A PLURALITY OF CARRIER SIGNALS OF DIFFERENT FREQUENCIES AND HAVING A PLURALITY OF RECEIVERS, ONE TUNED TO EACH CARRIER, MEANS FOR EACH RECEIVER TO DETERMINE MODULATION ON ITS CARRIER, COMPRISING: A PLURALITY OF FILTERS TUNED TO SECTIONS OF THE FREQUENCY SPECTRUM OF THE MODULATED CARRIER;
References Cited (Backward Citations)
US2966585A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |