Patent US3502584A successfully refreshed from Google Patents.
US3502584A
Expired / Lapsed
US
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Magnetic composite materials
Assignee: Individual
•
Filing: 1966-03-31
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Granted: 1970-03-24
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Expires: 1986-03-31
Abstract
No abstract record available.
Inventors
- 👤 Peter A Denes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:36
CPC Classifications
H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/33; H01F1/032; H01F1/04; H01F1/06; H01F1/10; H01F1/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1721379A
Cited
FR984544A
Cited
US2575099A
Cited
GB805710A
Cited
DE1037351B
Cited
US3019103A
Cited
US3073728A
Cited
US3100167A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-23 | 1973-09-22 | 1974-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-23 | 1977-09-22 | 1978-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-23 | 1981-09-22 | 1982-03-24 | $7700.00 | Window Closed / Lapsed |