US3143714A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hall effect devices
Assignee: Smiths America Corp
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Filing: 1960-12-16
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Granted: 1964-08-04
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Expires: 1980-12-16
Abstract
No abstract record available.
Inventors
- 👤 Evans John Fawcett Ogilvie
- 👤 Dunne John Brian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:40
CPC Classifications
H; H03; H03C; H03C1/00; H03C1/48
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
64 words
A HALL EFFECT DEVICE COMPRISING A PLATE OF MATERIAL HAVING AN APPRECIABLE HALL CONSTANT, SAID PLATE BEING SUBSTANTIALLY IN THE SHAPE OF A RHOMBUS HAVING A PAIR OF DIAGONALS THAT DIFFER IN LENGTH, MEANS FOR GENERATING A MAGNETIC FIELD IN A DIRECTION TRANSVERSE TO THE PLANE OF SAID PLATE, ELECTRODE MEANS AT THE CORNERS OF SAID PLATE, SAID ELECTRODE MEANS COMPRISING A FIRST PAIR
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |