US3114020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High resolution digital position transducer including a magnetic switch
Assignee: Beckman Coulter Inc
•
Filing: 1961-05-05
•
Granted: 1963-12-10
•
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 00:01
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
References Cited (Backward Citations)
GB538409A
Cited
US2445406A
Cited
US2459306A
Cited
US2769875A
Cited
US2827531A
Cited
US2945931A
Cited
US2932699A
Cited
US2999914A
Cited
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 |