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US3423670A
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US
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Magnetic shield arrangement for a high flux homogeneous field-producing magnet
Assignee: PerkinElmer Ltd
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Filing: 1965-08-02
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Granted: 1969-01-21
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Expires: 1985-08-02
Abstract
No abstract record available.
Inventors
- 👤 Leslie Kearton Parker
- 👤 John Bryant Leane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:25
CPC Classifications
C; C07; C07C; C07C209/00; C07C209/60; G; G01; G01R; G01R1/00; G01R1/02; G01R1/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2026060A
Cited
US2463778A
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GB611742A
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GB604329A
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US2864963A
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US3187237A
Cited
US3166727A
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US3287630A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |