Patent US3305682A successfully refreshed from Google Patents.
US3305682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ranging system
Assignee: General Electric Co
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Filing: 1963-07-26
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Granted: 1967-02-21
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Expires: 1983-07-26
Abstract
No abstract record available.
Inventors
- 👤 Morris F Bolster
- 👤 Norman C Gittinger
- 👤 Ernest S Sampson
- 👤 James R Whitten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:35
CPC Classifications
B; B61; B61L; B61L3/00; B61L3/02; B61L3/08; B61L3/12; B61L3/121
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
191 words
A RANGING SYSTEM COMPRISING: A TRANSMISSION LINE; MEANS FOR GENERATING A CONTINUOUS CARRIER SIGNAL; MEANS FOR MODULATING SAID CARRIER TO PRODUCE A CONTINUOUS CARRIER MODULATED SIGNAL; ENERGY COUPLING MEANS DISPOSED PROXIMATE SAID TRANSMISSION LINE AND AT A FIRST LOCATION THEREOF FOR COUPLING SAID CONTINUOUS CARRIER MODULATED SIGNAL TO SAID TRANSMISSION LINE; MEANS INCLUDING AN ENERGY ABSORBING DEVICE PROXIMATE SAID TRANSMISSION LINE FOR ASSURING PROPAGATION OF WAVE ENERGY THEREIN IN ONE DIRECTION ONLY; ENERGY REFLECTING MEANS REMOTE IN THE DIRECTION OF WAVE PROPAGATION FROM SAID ENERGY COUPLING MEANS AND DISPOSED NEAR SAID TRANSMISSION LINE FOR REFLECTING SAID WAVE ENERGY TOWARD SAID SOURCE THEREOF; AND AT A LOCATION THEREOF MEANS NEAR SAID TRANSMISSION LINE AND AT A LOCATION THEREOF INTERMEDIATE SAID ENERGY COUPLING AND ENERGY REFLECTING MEANS AND SPACED FROM SAID ENERGY COUPLING MEANS A DISTANCE SUFFICIENT TO AVOID ANY APPRECIABLE DIRECT COUPLING FROM SAID ENERGY COUPLING MEANS FOR SIMULTANEOUSLY EXTRACTING A FIRST SIGNAL FROM THE TRANSMITTED WAVE ENERGY IN SAID TRANSMISSION LINE AND A SECOND SIGNAL FROM THE REFLECTED WAVE ENERGY IN SAID TRANSMISSION LINE; AND MEANS FOR PHASE COMPARING SAID FIRST AND SECOND SIGNALS SO EXTRACTED TO PROVIDE A RANGE SIGNAL.
Claim 2
Dependent Claim
191 words
A RANGING SYSTEM COMPRISING: A TRANSMISSION LINE; MEANS FOR GENERATING A CONTINUOUS CARRIER SIGNAL; MEANS FOR MODULATING SAID CARRIER TO PRODUCE A CONTINUOUS CARRIER MODULATED SIGNAL; ENERGY COUPLING MEANS DISPOSED PROXIMATE SAID TRANSMISSION LINE AND AT A FIRST LOCATION THEREOF FOR COUPLING SAID CONTINUOUS CARRIER MODULATED SIGNAL TO SAID TRANSMISSION LINE; MEANS INCLUDING AN ENERGY ABSORBING DEVICE PROXIMATE SAID TRANSMISSION LINE FOR ASSURING PROPAGATION OF WAVE ENERGY THEREIN IN ONE DIRECTION ONLY; ENERGY REFLECTING MEANS REMOTE IN THE DIRECTION OF WAVE PROPAGATION FROM SAID ENERGY COUPLING MEANS AND DISPOSED NEAR SAID TRANSMISSION LINE FOR REFLECTING SAID WAVE ENERGY TOWARD SAID SOURCE THEREOF; AND AT A LOCATION THEREOF MEANS NEAR SAID TRANSMISSION LINE AND AT A LOCATION THEREOF INTERMEDIATE SAID ENERGY COUPLING AND ENERGY REFLECTING MEANS AND SPACED FROM SAID ENERGY COUPLING MEANS A DISTANCE SUFFICIENT TO AVOID ANY APPRECIABLE DIRECT COUPLING FROM SAID ENERGY COUPLING MEANS FOR SIMULTANEOUSLY EXTRACTING A FIRST SIGNAL FROM THE TRANSMITTED WAVE ENERGY IN SAID TRANSMISSION LINE AND A SECOND SIGNAL FROM THE REFLECTED WAVE ENERGY IN SAID TRANSMISSION LINE; AND MEANS FOR PHASE COMPARING SAID FIRST AND SECOND SIGNALS SO EXTRACTED TO PROVIDE A RANGE SIGNAL.
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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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |