Patent US3199054A successfully refreshed from Google Patents.
US3199054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shielded delay line
Assignee: Northrop Grumman Space and Mission Systems Corp
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Filing: 1960-10-17
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Granted: 1965-08-03
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Expires: 1980-10-17
Abstract
No abstract record available.
Inventors
- 👤 James E Holland
- 👤 Earl M Polzin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:53
CPC Classifications
H; H01; H01P; H01P9/00; H01P9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A DEVICE FOR RECEIVING AND TRANSMITTING WAVES OF ELECTROMAGNETIC ENERGY, COMPRISING: AN ELONGATED MEMBER, FORMED OF A MATERIAL HAVING A DIELECTRIC CONSTANT SUBSTANTIALLY HIGHER THAN AIR, AND HAVING AN ELECTRICALLY CONDUCTIVE LAYER ON OPPOSED SURFACES THEREOF AND HAVING A CONVOLUTED FORM SUCH THAT AT LEAST FIRST AND SECOND PORTIONS OF SAID MEMBER ARE DISPOSED IN SIDE-BY-SIDE ADJACENCY; MEANS FOR LAUNCHING AN ELECTROMAGNETIC ENERGY WAVE WITHIN SAID ELONGATED MEMBER AFFIXEAD TO AT LEAST ONE END THEREOF; SHIELDING MEANS DISPOSED BETWEEN SAID FIRST AND SECOND PORTIONS; AND A MATERIAL FOR ABSORBING ELECTROMAGNETIC ENERGY RADIATED FROM SAID ELONGATED MEMBER DISPOSED UPON AT LEAST A PORTION OF THE SURFACE OF SAID SHIELDING MEANS ADJACENT SAID ELONGATED MEMBER.
Claim 2
Independent Claim
113 words
A DEVICE FOR RECEIVING AND TRANSMITTING WAVES OF ELECTROMAGNETIC ENERGY, COMPRISING: AN ELONGATED MEMBER, FORMED OF A MATERIAL HAVING A DIELECTRIC CONSTANT SUBSTANTIALLY HIGHER THAN AIR, AND HAVING AN ELECTRICALLY CONDUCTIVE LAYER ON OPPOSED SURFACES THEREOF AND HAVING A CONVOLUTED FORM SUCH THAT AT LEAST FIRST AND SECOND PORTIONS OF SAID MEMBER ARE DISPOSED IN SIDE-BY-SIDE ADJACENCY; MEANS FOR LAUNCHING AN ELECTROMAGNETIC ENERGY WAVE WITHIN SAID ELONGATED MEMBER AFFIXEAD TO AT LEAST ONE END THEREOF; SHIELDING MEANS DISPOSED BETWEEN SAID FIRST AND SECOND PORTIONS; AND A MATERIAL FOR ABSORBING ELECTROMAGNETIC ENERGY RADIATED FROM SAID ELONGATED MEMBER DISPOSED UPON AT LEAST A PORTION OF THE SURFACE OF SAID SHIELDING MEANS ADJACENT SAID ELONGATED MEMBER.
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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) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |