Patent US3822146A successfully refreshed from Google Patents.
US3822146A
Expired / Lapsed
US
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Application of electrically conductive coatings to insulating tubes of switching magnets for particle accelerators
Assignee: United States Atomic Energy Commission
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Filing: 1972-07-05
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Granted: 1974-07-02
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Expires: 1992-07-05
Abstract
Abstract INDIUM IS APPLIED IN CONTROLLED AMOUNTS TO THE INTERIOR OF AN INSULATING TUBE USED IN A SWITCHING MAGNET FOR A HIGH-ENERGY PARTICLE ACCELERATOR. THEINDIUM IS THEN OXIDIZED TO FORM INDIUM SESQUIOXIDE. ELECTRICAL RESISTANCE OF THE INDIUM SESQUIOXIDE IS CONTROLLED BY VARYING THE THICKNESS OF THE COATING. THE INVENTION IS OF ESPECIAL UTILITY IN PREVENTING THE BUILDUP OF SURFACE ON SUCH TUBES.
Inventors
- 👤 E Tilles
- 👤 R Nissen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:44
CPC Classifications
H; H05; H05H; H05H7/00; H05H7/04
Claims Analysis
Total Claims: 0
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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) | 1977-07-01 | 1977-12-31 | 1978-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-01 | 1981-12-31 | 1982-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-01 | 1985-12-31 | 1986-07-02 | $7700.00 | Window Closed / Lapsed |