Patent US3369244A successfully refreshed from Google Patents.
US3369244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-channel slot antenna for ultra high frequencies
Assignee: Melpar Inc
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Filing: 1965-03-01
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Granted: 1968-02-13
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Expires: 1985-03-01
Abstract
No abstract record available.
Inventors
- 👤 Masters Robert Wayne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:54
CPC Classifications
H; H01; H01Q; H01Q21/00; H01Q21/0006; H01Q21/0037; H01Q21/0043; H01Q21/005; H01Q5/00; H01Q5/40; H01Q5/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN A MULTI-CHANNEL ANTENNA ARRAY FOR ULTRA HIGH FREQUENCIES, THE COMBINATION COMPRISING A PLURALITY OF WAVE GUIDES IN THE FORM OF METAL DUCTS OF GENERALLY RECTANGULAR CROSS SECTION, EACH OF SAID WAVE GUIDES HAVING A PAIR OF OPPOSITELY DISPOSED WIDER SIDES AND A PAIR OF OPPOSED NARROWER SIDES EXTENDING THEREBETWEEN, SAID WAVE GUIDES BEING DISPOSED SIDE BY SIDE IN A ROW WITH SAID NARROWER SIDES OF THE SUCCESSIVE WAVE GUIDES ADJACENT EACH OTHER, SAID WAVE GUIDES BEING DISPOSED WITH SAID WIDER SIDES OF SAID WAVE GUIDES IN CO-PLANAR RELATION TO ONE ANOTHER, EACH OF SAID WAVE GUIDES BEING FORMED WITH A SERIES OF LONGITUDINAL RADIATING SLOTS IN BOTH OF SAID WIDER SIDES THEREOF, EACH OF SAID WAVE GUIDES BEING TUNED TO A DIFFERENT FREQUENCY CHANNEL,
Claim 2
Dependent Claim
125 words
IN A MULTI-CHANNEL ANTENNA ARRAY FOR ULTRA HIGH FREQUENCIES, THE COMBINATION COMPRISING A PLURALITY OF WAVE GUIDES IN THE FORM OF METAL DUCTS OF GENERALLY RECTANGULAR CROSS SECTION, EACH OF SAID WAVE GUIDES HAVING A PAIR OF OPPOSITELY DISPOSED WIDER SIDES AND A PAIR OF OPPOSED NARROWER SIDES EXTENDING THEREBETWEEN, SAID WAVE GUIDES BEING DISPOSED SIDE BY SIDE IN A ROW WITH SAID NARROWER SIDES OF THE SUCCESSIVE WAVE GUIDES ADJACENT EACH OTHER, SAID WAVE GUIDES BEING DISPOSED WITH SAID WIDER SIDES OF SAID WAVE GUIDES IN CO-PLANAR RELATION TO ONE ANOTHER, EACH OF SAID WAVE GUIDES BEING FORMED WITH A SERIES OF LONGITUDINAL RADIATING SLOTS IN BOTH OF SAID WIDER SIDES THEREOF, EACH OF SAID WAVE GUIDES BEING TUNED TO A DIFFERENT FREQUENCY CHANNEL,
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |