Patent US3219954A successfully refreshed from Google Patents.
US3219954A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface wave transmission system for telecommunication and power transmission
Assignee: Individual
•
Filing: 1963-09-30
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Granted: 1965-11-23
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Expires: 1983-09-30
Abstract
No abstract record available.
Inventors
- 👤 Giovanni P Rutelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:43
CPC Classifications
H; H01; H01P; H01P3/00; H01P3/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
AN ELONGATED OPEN WAVE GUIDE FOR TRANSMITTING HIGH FREQUENCY ELECTROMAGNETIC ENERGY IN A DESIRED DIRECTION COMPRISING: (A) AN EXTERNAL CONDUCTIVE SURFACE EXTENDING LONGITUDINALLY IN THE DIRECTION OF AXIAL PROPAGATION OF THE ELECTRICAL ENERGY, SAID SURFACE PROVIDING A CONDUCTIVE ACTION TO REGULATE THE ATTENUATION OF THE POYNTING VECTOR IN THE DESIRED DIRECTION OF PROPAGATION; (B) MATNETIC MEANS DISPOSED IN CLOSE PROXIMITY TO SAID EXTERNAL SURFACE FOR PROVIDING INDEPENDENT OF SAID TRANSMITTED ELECTROMAGNETIC ENERGY A MAGNETIC ACTION TO REGULATE THE ATTENUATION OF THE MAGNETIC VECTOR IN THE DISIRED DIRECTION OF PROPAGATION WHEREBY THE PHASE VELOCITY OF THE WAVE IS LESS THAN THE VELOCITY OF LIGHT AND THE TRANSMITTED ELECTRICAL ENERGY IS DIRECTED ALONG AND MAINTAINED IN CLOSE PROXIMITY AND SUBSTANTIALLY NON-RADIATING TO SAID EXTERNAL SURFACE THROUGHOUT THE LENGTH OF SAID SURFACE OF SAID OPEN WAVE GUIDE.
Claim 2
Dependent Claim
134 words
AN ELONGATED OPEN WAVE GUIDE FOR TRANSMITTING HIGH FREQUENCY ELECTROMAGNETIC ENERGY IN A DESIRED DIRECTION COMPRISING: (A) AN EXTERNAL CONDUCTIVE SURFACE EXTENDING LONGITUDINALLY IN THE DIRECTION OF AXIAL PROPAGATION OF THE ELECTRICAL ENERGY, SAID SURFACE PROVIDING A CONDUCTIVE ACTION TO REGULATE THE ATTENUATION OF THE POYNTING VECTOR IN THE DESIRED DIRECTION OF PROPAGATION; (B) MATNETIC MEANS DISPOSED IN CLOSE PROXIMITY TO SAID EXTERNAL SURFACE FOR PROVIDING INDEPENDENT OF SAID TRANSMITTED ELECTROMAGNETIC ENERGY A MAGNETIC ACTION TO REGULATE THE ATTENUATION OF THE MAGNETIC VECTOR IN THE DISIRED DIRECTION OF PROPAGATION WHEREBY THE PHASE VELOCITY OF THE WAVE IS LESS THAN THE VELOCITY OF LIGHT AND THE TRANSMITTED ELECTRICAL ENERGY IS DIRECTED ALONG AND MAINTAINED IN CLOSE PROXIMITY AND SUBSTANTIALLY NON-RADIATING TO SAID EXTERNAL SURFACE THROUGHOUT THE LENGTH OF SAID SURFACE OF SAID OPEN WAVE GUIDE.
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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |