Patent US3452121A successfully refreshed from Google Patents.
US3452121A
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Apparatus and process for forming or molding magnetic substances
Assignee: Westinghouse Electric Corp
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Filing: 1968-03-11
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Granted: 1969-06-24
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Expires: 1988-03-11
Abstract
No abstract record available.
Inventors
- 👤 Alexander W Cochardt
- 👤 Joseph Buttyan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:35
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/01; C04B35/26; C04B35/2683; B; B28; B28B; B28B1/00; B28B1/26; B28B1/265; H; H01; H01F; H01F41/00; H01F41/02; H01F41/0253; H01F41/0273; C04B2235/00; C04B2235/02; C04B2235/30; C04B2235/32; C04B2235/3217; C04B2235/60; C04B2235/604; C04B2235/70; C04B2235/74; C04B2235/78; C04B2235/787; Y; Y10; Y10S; Y10S425/00; Y10S425/033
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1491600A
Cited
US3085291A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |