US3348150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diversity transmission system
Assignee: AT&T Inc
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Filing: 1964-07-27
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Granted: 1967-10-17
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Expires: 1984-07-27
Abstract
No abstract record available.
Inventors
- 👤 Bishnu S Atal
- 👤 Manfred R Schroeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:12
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/02; H04B7/04; H04B7/06; H04B7/0613; H04B7/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
82 words
A TRANSMISSION SYSTEM WHICH COMPRISES, A PLURALITY OF SPACED TRANSMITTERS OPERATING ON THE SAME CARRIER FREQUENCY, AT LEAST ON RECEIVER SEPARATED FROM SAID TRANSMITTERS TUNED TO SAID CARRIED FREQUENCY, A SOURCE OF SIGNALS, MEANS FOR SIMULTANEOULY SUPPLYING SIGNALS FROM SAID SOURCE TO EACH OF SAID TRANSMITTERS, AND NETWORK MEANS IN CIRCUIT RELATION WITH EACH OF SAID TRANSMITTERS, EACH OF SAID NETWORKS BEING CHACACTERIZED BY A TRUNCATED IRREGULAR FREQUENCY RESPONSE, THE TRUNCATED RESPONSE OF EACH OF SAID NETWORKS BEING DIFFERENT FROM ALL OTHERS.
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) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |