US3247472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave devices exhibiting mode conversion using a resonantly biased gyromagnetic material
Assignee: AT&T Inc
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Filing: 1963-03-06
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Granted: 1966-04-19
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Expires: 1983-03-06
Abstract
No abstract record available.
Inventors
- 👤 Edward H Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:42
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
IN AN ELECTROMAGNETIC WAVE TRANSMISSION SYSTEM; A FIRST SECTION OF WAVEGUIDE SUPPORTIVE OF WAVE ENERGY AT A GIVEN FREQUENCY; A SECOND SECTION OF WAVEGUIDE HAVING SUFFICIENTLY LARGER CROSS-SECTIONAL DIMENSIONS TO SUPPORT SAID WAVE ENERGY AT SAID GIVEN FREQUENCY IN A MODE OF PROPAGATION INCAPABLE OF BEING SUPPORTED IN SAID FIRST SECTION OF WAVEGUIDE; TRANSITION MEANS FOR COUPLING SAID WAVEGUIDE SECTIONS; AND AN ELEMENT OF GYROMAGNETIC MATERIAL MAGNETICALLY
Claim 2
Dependent Claim
67 words
IN AN ELECTROMAGNETIC WAVE TRANSMISSION SYSTEM; A FIRST SECTION OF WAVEGUIDE SUPPORTIVE OF WAVE ENERGY AT A GIVEN FREQUENCY; A SECOND SECTION OF WAVEGUIDE HAVING SUFFICIENTLY LARGER CROSS-SECTIONAL DIMENSIONS TO SUPPORT SAID WAVE ENERGY AT SAID GIVEN FREQUENCY IN A MODE OF PROPAGATION INCAPABLE OF BEING SUPPORTED IN SAID FIRST SECTION OF WAVEGUIDE; TRANSITION MEANS FOR COUPLING SAID WAVEGUIDE SECTIONS; AND AN ELEMENT OF GYROMAGNETIC MATERIAL MAGNETICALLY
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) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |