Patent US4918502A successfully refreshed from Google Patents.
Patent US2906977A successfully refreshed from Google Patents.
US2906977A
Expired / Lapsed
US
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Means of producing hipersil cores to facilitate mounting thereof
Assignee: Unisys Corp
•
Filing: 1955-03-02
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Granted: 1959-09-29
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Expires: 1975-03-02
Abstract
No abstract record available.
Inventors
- 👤 Lothair H Rowley
- 👤 Jr William C Boehm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:43
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/24; H01F27/25; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49071
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2466382A
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US1299585A
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US1339100A
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US2416989A
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US2391229A
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US2478029A
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US2579560A
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US2592721A
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US2702935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |