Patent US3114020A successfully refreshed from Google Patents.
US3114020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High resolution digital position transducer including a magnetic switch
Assignee: Beckman Coulter Inc
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Filing: 1961-05-05
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Granted: 1963-12-10
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Expires: 1981-05-05
Abstract
No abstract record available.
Inventors
- 👤 Michael A Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:50
CPC Classifications
H; H01; H01H; H01H36/00; H01H36/0006; H01H36/0013; H01H36/002
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A POSITION TRANSDUCER COMPRISING FIRST AND SECOND SPACED MAGNETIC ELECTRODES, A MAGNETIC REED LOCATED BETWEEN SAID ELECTRODES, FIRST AND SECOND SUBSTANTIALLY PARALLEL MAGNETIC FIELD GENERATING ELEMENTS RESPECTIVELY JUXTAPOSED TO SAID FIRST AND SECOND ELECTRODES, AND A NONHOMOGENEOUS MEMBER INCLUDING SERIALLY SPACED SECTIONS OF ALTERNATE HIGH AND LOW MAGNETIC PERMEABILITY MATERIAL MOVABLY LOCATED BETWEEN SAID ELECTRODES AND
Claim 2
Dependent Claim
56 words
A POSITION TRANSDUCER COMPRISING FIRST AND SECOND SPACED MAGNETIC ELECTRODES, A MAGNETIC REED LOCATED BETWEEN SAID ELECTRODES, FIRST AND SECOND SUBSTANTIALLY PARALLEL MAGNETIC FIELD GENERATING ELEMENTS RESPECTIVELY JUXTAPOSED TO SAID FIRST AND SECOND ELECTRODES, AND A NONHOMOGENEOUS MEMBER INCLUDING SERIALLY SPACED SECTIONS OF ALTERNATE HIGH AND LOW MAGNETIC PERMEABILITY MATERIAL MOVABLY LOCATED BETWEEN SAID ELECTRODES AND
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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) | 1966-12-09 | 1967-06-10 | 1967-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-09 | 1971-06-10 | 1971-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-09 | 1975-06-10 | 1975-12-10 | $7700.00 | Window Closed / Lapsed |