US3363201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable attenuator having low minimum insertion loss
Assignee: HAROLD B ISAACSON
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Filing: 1965-03-25
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Granted: 1968-01-09
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Expires: 1985-03-25
Abstract
No abstract record available.
Inventors
- 👤 Harold B Isaacson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:09
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/04; H01P1/00; H01P1/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A VARIABLE ATTENUATOR COMPRISING FIRST AND SECOND TRANSMISSION LINES ADAPTER TO PROPAGATE RADIO FREQUENCY ENERGY THEREALONG DISPOSED IN SPACED RELATIONSHIP EACH OF SAID TRANSMISSION LINES COMPRISING DISCRETE PORTIONS DISPODED IN OVERLAPPING RELATIONSHIP ALONG A LENGTH SUFFICIENT TO PROVIDE SUBSTANTIAL COUPLING BETWEEN SAID LINES, AT LEAST ONE OF SAID PORTIONS BEING MOVEABLE RELATIVE TO ANOTHER OF SAID PORTIONS, MEANS FOR VARYING THE SPACING BETWEEN SAID TRANSMISSION LINES TO VARY THE TRANSFER OF SAID ENERGY THEREBETWEEN AND MEANS COACTING WITH SAID
Claim 2
Dependent Claim
79 words
A VARIABLE ATTENUATOR COMPRISING FIRST AND SECOND TRANSMISSION LINES ADAPTER TO PROPAGATE RADIO FREQUENCY ENERGY THEREALONG DISPOSED IN SPACED RELATIONSHIP EACH OF SAID TRANSMISSION LINES COMPRISING DISCRETE PORTIONS DISPODED IN OVERLAPPING RELATIONSHIP ALONG A LENGTH SUFFICIENT TO PROVIDE SUBSTANTIAL COUPLING BETWEEN SAID LINES, AT LEAST ONE OF SAID PORTIONS BEING MOVEABLE RELATIVE TO ANOTHER OF SAID PORTIONS, MEANS FOR VARYING THE SPACING BETWEEN SAID TRANSMISSION LINES TO VARY THE TRANSFER OF SAID ENERGY THEREBETWEEN AND MEANS COACTING WITH SAID
References Cited (Backward Citations)
CA514235A
Cited
US3166723A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-08 | 1971-07-10 | 1972-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-08 | 1975-07-10 | 1976-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-08 | 1979-07-10 | 1980-01-09 | $7700.00 | Window Closed / Lapsed |