US3221314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple channel magnetic transducer
Assignee: Unisys Corp
•
Filing: 1961-12-05
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Granted: 1965-11-30
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Expires: 1981-12-05
Abstract
No abstract record available.
Inventors
- 👤 Jr John C Sims
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:09
CPC Classifications
G; G06; G06K; G06K15/00; G06K15/02; G06K15/14; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49021; Y10T29/49032; Y10T29/49055
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
A MULTIPLE CHANNEL MAGNETIC TRANSDUCER COMPRISING ALTERNATING LAMINATIONS OF RELATIVELY DIAMAGNETIC CONDUCTORS AND RELATIVELY PARAMAGNETIC DIELECTRICS IN WHICH SAID RELATIVELY PARAMAGNETIC DIELECTRICS ARE IN CONTACT WITH EACH OTHER THROUGH PROTRUSIONS.
Claim 2
Dependent Claim
30 words
A MULTIPLE CHANNEL MAGNETIC TRANSDUCER COMPRISING ALTERNATING LAMINATIONS OF RELATIVELY DIAMAGNETIC CONDUCTORS AND RELATIVELY PARAMAGNETIC DIELECTRICS IN WHICH SAID RELATIVELY PARAMAGNETIC DIELECTRICS ARE IN CONTACT WITH EACH OTHER THROUGH PROTRUSIONS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |