US3255453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-uniform dielectric toroidal lenses
Assignee: Armstrong World Industries Inc
•
Filing: 1963-03-26
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Granted: 1966-06-07
•
Expires: 1983-03-26
Abstract
No abstract record available.
Inventors
- 👤 Robert L Horst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:20
CPC Classifications
H; H01; H01Q; H01Q15/00; H01Q15/02; H01Q15/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A MICROWAVE ELECTRO-MAGNETIC RADIATION ENERGY REFRACTING DEVICE COMPRISING A TOROIDALLY SHAPED MASS OF DIELECTRIC MATERIAL EXHIBITING A SMOOTHLY VARYING DIELECTRIC CONSTANT BETWEEN THE OUTERMOST SURFACE OF SAID MASS AND POINTS INTERIOR OF SAID MASS, SAID POINTS INTERIOR OF SAID MASS HAVING A HIGHER DIELECTRIC CONSTANT THAN SAID OUTERMOST SURFACE OF SAID MASS, SAID TOROIDALLY SHAPED MASS BEING ADAPTED TO REFRACT SAID ENERGY IN A PREDETERMINED PATTERN BETWEEN DIAMETRICALLY OPPOSED REGIONS OF A CROSS-SECTIONAL AREA OF SAID TOROIDAL MASS.
Claim 2
Dependent Claim
78 words
A MICROWAVE ELECTRO-MAGNETIC RADIATION ENERGY REFRACTING DEVICE COMPRISING A TOROIDALLY SHAPED MASS OF DIELECTRIC MATERIAL EXHIBITING A SMOOTHLY VARYING DIELECTRIC CONSTANT BETWEEN THE OUTERMOST SURFACE OF SAID MASS AND POINTS INTERIOR OF SAID MASS, SAID POINTS INTERIOR OF SAID MASS HAVING A HIGHER DIELECTRIC CONSTANT THAN SAID OUTERMOST SURFACE OF SAID MASS, SAID TOROIDALLY SHAPED MASS BEING ADAPTED TO REFRACT SAID ENERGY IN A PREDETERMINED PATTERN BETWEEN DIAMETRICALLY OPPOSED REGIONS OF A CROSS-SECTIONAL AREA OF SAID TOROIDAL MASS.
References Cited (Backward Citations)
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US3001267A
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US3067420A
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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) | 1969-06-06 | 1969-12-06 | 1970-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-06 | 1973-12-06 | 1974-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-06 | 1977-12-06 | 1978-06-07 | $7700.00 | Window Closed / Lapsed |