Patent US3387707A successfully refreshed from Google Patents.
US3387707A
Expired / Lapsed
US
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Permanent magnet assembly
Assignee: Westinghouse Electric Corp
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Filing: 1965-06-14
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Granted: 1968-06-11
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Expires: 1985-06-14
Abstract
No abstract record available.
Inventors
- 👤 William C Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:56
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/10; B03C1/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2146588A
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US3067366A
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US2992736A
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US3168686A
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US2992737A
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US2992738A
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US3209912A
Cited
US3283900A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |