Patent US3265995A successfully refreshed from Google Patents.
US3265995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission line to waveguide junction
Assignee: AT&T Inc
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Filing: 1964-03-18
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Granted: 1966-08-09
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Expires: 1984-03-18
Abstract
No abstract record available.
Inventors
- 👤 Hamasaki Joji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:08
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/08; H01P5/10; H01P5/107
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
IN COMBINATION, A SECTION OF TWO-CONDUCTOR TRANSMISSION LINE, A SECTION OF CONDUCTIVELY BOUNDED RECTANGULAR WAVEGUIDE, MEANS FOR COUPLING ELECTROMAGNETIC WAVE ENERGY FROM ONE OF SAID SECTIONS TO THE OTHER OF SAID SECTIONS, SAID MEANS COMPRISING A SOLELY LONGITUDINAL EXTENSION OF ONE CONDUCTOR OF SAID TWO-CONDUCTOR TRANSMISSION LINE SECTION INTO SAID WAVEGUIDE SECTION, A REGION HAVING A FIRST DIELECTRIC CONSTANT EXTENDING BETWEEN SAID LONGITUDINALLY EXTENDED CONDUCTOR AND ONE OF THE BROAD WALLS OF SAID WAVEGUIDE SECTION, THE REMAINDER OF SAID WAVEGUIDE SECTION HAVING A DIELECTRIC CONSTANT DIFFERENT THAN SAID FIRST DIELECTRIC CONSTANT.
Claim 2
Dependent Claim
91 words
IN COMBINATION, A SECTION OF TWO-CONDUCTOR TRANSMISSION LINE, A SECTION OF CONDUCTIVELY BOUNDED RECTANGULAR WAVEGUIDE, MEANS FOR COUPLING ELECTROMAGNETIC WAVE ENERGY FROM ONE OF SAID SECTIONS TO THE OTHER OF SAID SECTIONS, SAID MEANS COMPRISING A SOLELY LONGITUDINAL EXTENSION OF ONE CONDUCTOR OF SAID TWO-CONDUCTOR TRANSMISSION LINE SECTION INTO SAID WAVEGUIDE SECTION, A REGION HAVING A FIRST DIELECTRIC CONSTANT EXTENDING BETWEEN SAID LONGITUDINALLY EXTENDED CONDUCTOR AND ONE OF THE BROAD WALLS OF SAID WAVEGUIDE SECTION, THE REMAINDER OF SAID WAVEGUIDE SECTION HAVING A DIELECTRIC CONSTANT DIFFERENT THAN SAID FIRST DIELECTRIC CONSTANT.
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) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |