US3522390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetoresistive transducer having microscopic hall field shorting
Assignee: HARRY H WIEDER
•
Filing: 1965-04-12
•
Granted: 1970-07-28
•
Expires: 1985-04-12
Abstract
No abstract record available.
Inventors
- 👤 Harry H Wieder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:37
CPC Classifications
H; H10; H10N; H10N50/00; H10N50/10; H04; H04R; H04R23/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3260980A
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US2866857A
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US2914728A
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GB872886A
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US3061771A
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US3109985A
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US3046361A
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US3341364A
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US3321384A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-27 | 1974-01-26 | 1974-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-27 | 1978-01-26 | 1978-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-27 | 1982-01-26 | 1982-07-28 | $7700.00 | Window Closed / Lapsed |