US3227931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Permanent-magnet uniform-field-producing apparatus
Assignee: Zenith Electronics LLC
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Filing: 1963-07-18
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Granted: 1966-01-04
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Expires: 1983-07-18
Abstract
No abstract record available.
Inventors
- 👤 Adler Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:28
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/02; H01J23/08; H01J23/087; H01F; H01F7/00; H01F7/02; H01F7/0273; H01F7/0278; H01J29/00; H01J29/46; H01J29/58; H01J29/64; H01J29/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
A MAGNETIC INSULATOR COMPRISING: A HOLLOW BODY OF MAGNETIC MATERIAL HAVING LONGITUDINAL CROSS-SECTION OF GENERALLY TRIANGULAR SHAPE IN A GIVEN PLANE AND MAGNETIZED IN A DIRECTION, IN SAID PLANE, PERPENDICULAR TO AN OUTER SIDE OF THE TRIANGLE TO PRODUCE A MAGNETOSTATIC POTENTIAL WHICH INCREASES GENERALLY LINEARLY ALONG AN INTERNAL BOUNDARY THEREOF.
Claim 2
Dependent Claim
51 words
A MAGNETIC INSULATOR COMPRISING: A HOLLOW BODY OF MAGNETIC MATERIAL HAVING LONGITUDINAL CROSS-SECTION OF GENERALLY TRIANGULAR SHAPE IN A GIVEN PLANE AND MAGNETIZED IN A DIRECTION, IN SAID PLANE, PERPENDICULAR TO AN OUTER SIDE OF THE TRIANGLE TO PRODUCE A MAGNETOSTATIC POTENTIAL WHICH INCREASES GENERALLY LINEARLY ALONG AN INTERNAL BOUNDARY THEREOF.
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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |