US3237056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetizing and demagnetizing apparatus
Assignee: Wisconsin Magnetics Inc
•
Filing: 1962-02-08
•
Granted: 1966-02-22
•
Expires: 1982-02-08
Abstract
No abstract record available.
Inventors
- 👤 Puy Richard R Du
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:42
CPC Classifications
B; B23; B23Q; B23Q3/00; B23Q3/15; B66; B66C; B66C1/00; B66C1/04; B66C1/06; B66C1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN COMBINATION, A PORTION OF PERMANENTLY MAGNETIZABLE MATERIAL, ELECTRICALLY ENERGIZED MEANS FOR MAGNETIZING SAID MATERIAL, A SOURCE OF ELECTRICAL ENERGY, MEANS FOR STORING SAID ELECTRICAL ENERGY, MEANS FOR SELECTIVELY CONNECTING SAID ENERGY STORING MEANS SO THAT SAID ENERGY STORING SAID ELECTRICAL ENERGY, MEANS FOR SELECTIVELY CONAND DISCHARGED THROUGH SAID ELECTRICALLY ENERGIZED MEANS, AND DISCHARED THROUGH SAID ELECTRICALLY ENERGIZED MEANS, AND MEANS SELECTIVELY CONNECTABLE BETWEEN SAID ENERGY STORING MEANS AND SAID ELECTRICALLY ENERGIZED MEANS FOR ALTERNATING THE DISCHARGE OF SAID ENERGY STORING MEANS THROUGH SAID ELECTRICALLY ENERGIZED MEANS TO EFFECT COMPLETE DE-MAGNETIZATION OF SAID MATERIAL.
Claim 2
Dependent Claim
94 words
IN COMBINATION, A PORTION OF PERMANENTLY MAGNETIZABLE MATERIAL, ELECTRICALLY ENERGIZED MEANS FOR MAGNETIZING SAID MATERIAL, A SOURCE OF ELECTRICAL ENERGY, MEANS FOR STORING SAID ELECTRICAL ENERGY, MEANS FOR SELECTIVELY CONNECTING SAID ENERGY STORING MEANS SO THAT SAID ENERGY STORING SAID ELECTRICAL ENERGY, MEANS FOR SELECTIVELY CONAND DISCHARGED THROUGH SAID ELECTRICALLY ENERGIZED MEANS, AND DISCHARED THROUGH SAID ELECTRICALLY ENERGIZED MEANS, AND MEANS SELECTIVELY CONNECTABLE BETWEEN SAID ENERGY STORING MEANS AND SAID ELECTRICALLY ENERGIZED MEANS FOR ALTERNATING THE DISCHARGE OF SAID ENERGY STORING MEANS THROUGH SAID ELECTRICALLY ENERGIZED MEANS TO EFFECT COMPLETE DE-MAGNETIZATION OF SAID MATERIAL.
References Cited (Backward Citations)
USRE25607E
Cited
US2445459A
Cited
US2792532A
Cited
US2748322A
Cited
US2962560A
Cited
US3045151A
Cited
US2996863A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-21 | 1969-08-23 | 1970-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-21 | 1973-08-23 | 1974-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-21 | 1977-08-23 | 1978-02-22 | $7700.00 | Window Closed / Lapsed |