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Patent US3160813A successfully refreshed from Google Patents.
US3160813A
Expired / Lapsed
US
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Tropospheric radio communication system
Assignee: Thales SA
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Filing: 1960-06-17
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Granted: 1964-12-08
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Expires: 1980-06-17
Abstract
No abstract record available.
Inventors
- 👤 Biggi Victor
- 👤 Simon Jean Claude
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:39
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A TROPOSPHERIC RADIO LINK COMPRISING: A TRANSMITTER FOR TRANSMITTING A SIGNAL HAVING A CARRIER FREQUENCY; MEANS FOR CYCLICALLY TUNING SAID FREQUENCY TO SWEEP A PREDETERMINED FREQUENCY BAND DURING FIRST PERIODICALLY REPEATED TIME INTERVALS AND TO BE CLAMPED TO ONE OF THE FREQUENCY VALUES COMPRISED IN SAID FREQUENCY BAND DURING SECOND PERIODICALLY REPEATED TIME INTERVALS SAID FIRST AND SECOND INTERVALS HAVING RESPECTIVELY FIXED FIRST AND SECOND DURATIONS T AND T SEPARATING TWO CONSECUTIVE FIRST TIME INTERVALS; A RECEIVER FOR RECEIVING SAID SIGNAL; MEANS FOR MEASURING THE AMPLITUDE OF SAID RECEIVED SIGNAL DURING SAID FIRST INTERVALS AND FOR DETERMINING THE FREQUENCY CORRESPONDING TO THE PEAK AMPLITUDE OF SAID SIGNAL; MEANS FOR MAKING SAID ONE FREQUENCY EQUAL TO SAID LAST MENTIONED FREQUENCY; AND MEANS FOR CONSTANTLY TUNING SAID RECEIVER TO SAID TRANSMITTER.
Claim 2
Dependent Claim
129 words
A TROPOSPHERIC RADIO LINK COMPRISING: A TRANSMITTER FOR TRANSMITTING A SIGNAL HAVING A CARRIER FREQUENCY; MEANS FOR CYCLICALLY TUNING SAID FREQUENCY TO SWEEP A PREDETERMINED FREQUENCY BAND DURING FIRST PERIODICALLY REPEATED TIME INTERVALS AND TO BE CLAMPED TO ONE OF THE FREQUENCY VALUES COMPRISED IN SAID FREQUENCY BAND DURING SECOND PERIODICALLY REPEATED TIME INTERVALS SAID FIRST AND SECOND INTERVALS HAVING RESPECTIVELY FIXED FIRST AND SECOND DURATIONS T AND T SEPARATING TWO CONSECUTIVE FIRST TIME INTERVALS; A RECEIVER FOR RECEIVING SAID SIGNAL; MEANS FOR MEASURING THE AMPLITUDE OF SAID RECEIVED SIGNAL DURING SAID FIRST INTERVALS AND FOR DETERMINING THE FREQUENCY CORRESPONDING TO THE PEAK AMPLITUDE OF SAID SIGNAL; MEANS FOR MAKING SAID ONE FREQUENCY EQUAL TO SAID LAST MENTIONED FREQUENCY; AND MEANS FOR CONSTANTLY TUNING SAID RECEIVER TO SAID TRANSMITTER.
References Cited (Backward Citations)
US2209273A
Cited
US2521696A
Cited
US2694140A
Cited
US3054895A
Cited
US3001064A
Cited
US2967908A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-08 | 1968-06-08 | 1968-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-08 | 1972-06-08 | 1972-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-08 | 1976-06-08 | 1976-12-08 | $7700.00 | Window Closed / Lapsed |