US3559128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superconducting magnet for persistent operation
Assignee: Varian Medical Systems Inc
•
Filing: 1968-07-22
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Granted: 1971-01-26
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Expires: 1988-07-22
Abstract
Abstract AN APPARATUS FOR PROVIDING A SUPERCONDUCTIVE MAGNET OF NIOBIUM-TIN RIBBON FOR PERSISTENT OPERATION AND INCLUDING AS NOVEL MEANS FOR ALLOWING THE COIL WINDING ENDS TO BE EXTRACTED FROM THE WINDING BOBBIN WITHOUT KINKING, A NOVEL MEANS OF SPLICING THE ENDS OF THE SUPERCONDUCTIVE RIBBON TO A PERSISTENT SWITCH MEANS, AND A MEANS FOR SUPPORTING THE SPLICED RIBBON OUTSIDE OF THE INTENSE MAGNETIC FIELD PRODUCED BY THE SOLENOID.
Inventors
- 👤 Floyd E Kingston
- 👤 Harry E Weaver Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:31
CPC Classifications
H; H01; H01F; H01F6/00; H01F6/06; H01F6/065; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/879
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |