Patent US3098967A successfully refreshed from Google Patents.
US3098967A
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Cryotron type switching device
Assignee: GTE Sylvania Inc
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Filing: 1959-01-09
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Granted: 1963-07-23
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Expires: 1979-01-09
Abstract
No abstract record available.
Inventors
- 👤 Paul H Keck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:54
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/44; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/856; Y10S505/857; Y10S505/86
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
74 words
A SWITCHING DEVICE CONSISTING OF AN ELECTRICALLY CONDUCTIVE CYLINDER THROUGH WHICH A LOAD CURRENT FLOWS; AN ELECTRICALLY CONDUCTIVE WIRE EXTENDING AXIALLY WITHIN SAID CYLINDER, A CONTROL CURRENT FLOWING THROUGH SAID WIRE; AND MEANS TO MAINTAIN SAID CYLINDER AND SAID WIRE AT AN EXTREMELY LOW TEMPERATURE AT WHICH SAID CYLINDER IS A SUPERCONDUCTOR FOR CONTROL CURRENT VALUES FALLING BELOW A DESIGNATED MINIMUM VALUE, SAID CYLINDER BEING NORMALLY CONDUCTIVE WHEN SAID CONTROL CURRENT ATTAINS A VALUE
References Cited (Backward Citations)
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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) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |