US3194640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Use of ultrasound to induce crystal rearrangements and phase transitions
Assignee: Individual
•
Filing: 1961-02-10
•
Granted: 1965-07-13
•
Expires: 1981-02-10
Abstract
No abstract record available.
Inventors
- 👤 Nesh Florence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:21
CPC Classifications
G; G11; G11B; G11B5/00; G11B5/62; G11B5/68; G11B5/70; G11B5/706; G11B5/70626; G11B5/70642; G11B5/70652; G11B5/70647
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
THE METHOD OF TREATING A METAL OXIDE, WHICH IN ONE FORM IS NON-FERROMAGNETIC AND IN ANOTHER FORM IS FERROMAGNETIC, TO CONVERT SAID OXIDE FROM A NON-FERROMAGNETIC FORM TO A FERROMAGNETIC FORM, WHICH COMPRISES: (A) DISPERSING AND SUSPENDING SAID OXIDE, WHILE IN A FINELY DIVIDED CONDITION, IN AN AQUEOUS LIQUID CONTAINING SMALL GAS BUBBLES, AND (B) SUBJECTING SAID LIQUID WITH DISPERSED OXIDE SUSPENDED THEREIN CONCURRENTLY TO ULTRASONIC VIRATIONS SUFFICIENT TO CREATE CAVITATION AND A STRONG MAGNETIC FIELD, UNTIL THE CRYSTAL FORM OF THE OXIDE IS CHANGED TO ITS FERROMAGNETIC FORM.
Claim 2
Independent Claim
89 words
THE METHOD OF TREATING A METAL OXIDE, WHICH IN ONE FORM IS NON-FERROMAGNETIC AND IN ANOTHER FORM IS FERROMAGNETIC, TO CONVERT SAID OXIDE FROM A NON-FERROMAGNETIC FORM TO A FERROMAGNETIC FORM, WHICH COMPRISES: (A) DISPERSING AND SUSPENDING SAID OXIDE, WHILE IN A FINELY DIVIDED CONDITION, IN AN AQUEOUS LIQUID CONTAINING SMALL GAS BUBBLES, AND (B) SUBJECTING SAID LIQUID WITH DISPERSED OXIDE SUSPENDED THEREIN CONCURRENTLY TO ULTRASONIC VIRATIONS SUFFICIENT TO CREATE CAVITATION AND A STRONG MAGNETIC FIELD, UNTIL THE CRYSTAL FORM OF THE OXIDE IS CHANGED TO ITS FERROMAGNETIC FORM.
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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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |