Patent US3410751A successfully refreshed from Google Patents.
US3410751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Opening up asbestos with dimethylsulfoxide
Assignee: FMC Corp
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Filing: 1965-08-13
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Granted: 1968-11-12
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Expires: 1985-08-13
Abstract
No abstract record available.
Inventors
- 👤 Orlando A Battista
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:11
CPC Classifications
D; D21; D21H; D21H13/00; D21H13/36; D21H13/38; D21H13/42; C; C04; C04B; C04B20/00; C04B20/02; C04B20/08; D21H5/00; D21H5/12; D21H5/18; D21H5/183
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
63 words
THE METHOD OF OPENING UP ASBESTOS WHICH COMPRISES SUBMITTING SAID ASBESTOS SOAKED IN DIMETHYLSULFOXIDE IN AN AMOUNT SUFFICIENT TO AID IN THE OPENING OF SAID ASBESTOS TO MECHANICAL ACTION, CONTINUING THE MECHANICAL ACTION TO OBTAIN ASBESTOS PARTICLES AND FIBRILS RANGING FROM LESS THAN A MICRON TO A FEW HUNDRED ANGSTROM UNITS IN THEIR LARGEST DIMENSION, AND THEN WASHING THE ASBESTOS FREE OF DIMETHYLSULFOXIDE.
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) | 1971-11-12 | 1972-05-13 | 1972-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-12 | 1976-05-13 | 1976-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-12 | 1980-05-13 | 1980-11-12 | $7700.00 | Window Closed / Lapsed |