Patent US3189483A successfully refreshed from Google Patents.
US3189483A
Expired / Lapsed
US
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Coatings for magnetic sheet material
Assignee: Westinghouse Electric Corp
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Filing: 1962-10-26
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Granted: 1965-06-15
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Expires: 1982-10-26
Abstract
No abstract record available.
Inventors
- 👤 Warren M Trigg
- 👤 Byron V Mcbride
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:38
CPC Classifications
H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/14; H01F1/16; H01F1/18; C; C09; C09D; C09D161/00; C09D161/20; C09D161/26; H01B; H01B3/00; H01B3/02; H01B3/025; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/31504; Y10T428/31678; Y10T428/31688
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
MAGNETIC SHEET MATERIAL COATED ON AT LEAST ONE SIDE THEREOF WITH A TENACIOUSLY ADHERING COATING CONSISTING OF FROM 3.45 TO 10.45 PARTS BY WEIGHT OF A MIXTURE OF MAGNESIUM OXIDE CONTAINING UP TO 50% OF ITS WEIGHT OF A FINELY DIVIDED INERT REFRACTORY INSULATING SOLID SELECTED FROM THE GROUP OF METAL OXIDES, METAL SILICATES AND METAL PHOSPHATES, AND FROM 0.1 TO 1 PART BY WEIGHT OF BENTONITE, SAID COATING BONDED TO THE SHEET BY AT LEAST ONE FULLY CURED AMINOTRIAZINE-ALDEHYDE RESIN.
Claim 2
Dependent Claim
81 words
MAGNETIC SHEET MATERIAL COATED ON AT LEAST ONE SIDE THEREOF WITH A TENACIOUSLY ADHERING COATING CONSISTING OF FROM 3.45 TO 10.45 PARTS BY WEIGHT OF A MIXTURE OF MAGNESIUM OXIDE CONTAINING UP TO 50% OF ITS WEIGHT OF A FINELY DIVIDED INERT REFRACTORY INSULATING SOLID SELECTED FROM THE GROUP OF METAL OXIDES, METAL SILICATES AND METAL PHOSPHATES, AND FROM 0.1 TO 1 PART BY WEIGHT OF BENTONITE, SAID COATING BONDED TO THE SHEET BY AT LEAST ONE FULLY CURED AMINOTRIAZINE-ALDEHYDE RESIN.
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) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |