US3172113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curved antenna with variably spaced slots
Assignee: Individual
•
Filing: 1962-06-06
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Granted: 1965-03-02
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Expires: 1982-06-06
Abstract
No abstract record available.
Inventors
- 👤 Whilden G Heinard
- 👤 William H Pepper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 00:01
CPC Classifications
H; H01; H01Q; H01Q21/00; H01Q21/06; H01Q21/20; H01Q1/00; H01Q1/27; H01Q1/28; H01Q1/286; H01Q21/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A SLOTTED WAVEGUIDE ANTENNA COMPRISING: A CURVED SECTION OF WAVEGUIDE, SAID CURVED SECTION OF WAVEGUIDE HAVING FOUR WALLS, A LONGITUDINAL CENTER LINE, AND A CENTER OF CURVATURE; A PLURALITY OF RADIATING SLOTS SPACED LONGITUDINALLY ALONG ONE WALL OF SAID CURVED SECTION OF WAVEGUIDE, SAID ONE WALL BEING THE WALL FACING AWAY FROM THE CENTER OF CURVATURE; MEANS TO COUPLE MICROWAVE ENERGY TO BE RADIATED INTO SAID CURVED SECTION OF WAVEGUIDE; THE SPACING BETWEN SAID SLOTS VARYING, THE VARIATION IN SPACING BEING A FUNCTION OF THE DISTANCE FROM SAID COUPLING MEANS, WHEREBY SAID ANTENNA RADIATES SAID ENERGY SUB-
Claim 2
Dependent Claim
97 words
A SLOTTED WAVEGUIDE ANTENNA COMPRISING: A CURVED SECTION OF WAVEGUIDE, SAID CURVED SECTION OF WAVEGUIDE HAVING FOUR WALLS, A LONGITUDINAL CENTER LINE, AND A CENTER OF CURVATURE; A PLURALITY OF RADIATING SLOTS SPACED LONGITUDINALLY ALONG ONE WALL OF SAID CURVED SECTION OF WAVEGUIDE, SAID ONE WALL BEING THE WALL FACING AWAY FROM THE CENTER OF CURVATURE; MEANS TO COUPLE MICROWAVE ENERGY TO BE RADIATED INTO SAID CURVED SECTION OF WAVEGUIDE; THE SPACING BETWEN SAID SLOTS VARYING, THE VARIATION IN SPACING BEING A FUNCTION OF THE DISTANCE FROM SAID COUPLING MEANS, WHEREBY SAID ANTENNA RADIATES SAID ENERGY SUB-
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) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |