US2578154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiant energy antenna
Assignee: Collins Radio Co
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Filing: 1949-09-03
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Granted: 1951-12-11
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Expires: 1969-09-03
Abstract
No abstract record available.
Inventors
- 👤 John P Shanklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:31
CPC Classifications
H; H01; H01Q; H01Q9/00; H01Q9/04; H01Q9/16; H01Q9/26; H01Q9/30; H01Q9/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
A HALF-WAVE ANTENNA COMPRISING A SUBSTANTIALLY ONE-HALF WAVE LENGTH SEMI-CIRCULAR RADIATING PORTION, A FIRST SUBSTANTIALLY NON-CONDUCTING FASTENING MEMBER CONNECTED TO ONE END OF SAID RADIATING PORTION, A SECOND SUBSTANTIALLY NON-CONDUCTING FASTENING MEMBER CONNECTED TO TH OTHER END OF SAID RADIATING PORTION, SAID FASTENING MEMBERS CONNECTED TO AN ELECTRICALLY CONDUCTING BASE, AND A COAXIAL FEEDING CABLE WITH THE OUTER CONDUCTOR CONNECTED TO SAID BASE AND THE INNER CONDUCTOR EXTENDING INTO SAID FIRST FASTENING MEMBER TO FEED SAID ANTENNA.
Claim 2
Dependent Claim
77 words
A HALF-WAVE ANTENNA COMPRISING A SUBSTANTIALLY ONE-HALF WAVE LENGTH SEMI-CIRCULAR RADIATING PORTION, A FIRST SUBSTANTIALLY NON-CONDUCTING FASTENING MEMBER CONNECTED TO ONE END OF SAID RADIATING PORTION, A SECOND SUBSTANTIALLY NON-CONDUCTING FASTENING MEMBER CONNECTED TO TH OTHER END OF SAID RADIATING PORTION, SAID FASTENING MEMBERS CONNECTED TO AN ELECTRICALLY CONDUCTING BASE, AND A COAXIAL FEEDING CABLE WITH THE OUTER CONDUCTOR CONNECTED TO SAID BASE AND THE INNER CONDUCTOR EXTENDING INTO SAID FIRST FASTENING MEMBER TO FEED SAID ANTENNA.
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) | 1954-12-10 | 1955-06-11 | 1955-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-10 | 1959-06-11 | 1959-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-10 | 1963-06-11 | 1963-12-11 | $7700.00 | Window Closed / Lapsed |