Patent US3663475A successfully refreshed from Google Patents.
US3663475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel diamond powder dispersions and process for obtaining same
Assignee: Honeywell International Inc
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Filing: 1970-03-06
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Granted: 1972-05-16
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Expires: 1990-03-06
Abstract
Abstract THIS APPLICATION IS DIRECTED TO DISPERSIONS OF SYNTHETIC SHOCK-FORMED DIAMOND POWDER AND TO THE METHOD OF OBTAINING SAME BY SUBJECTING A MIXTURE OF SYNTHETIC SHOCKFORMED DIAMOND POWDER IN A LIQUID DISPERSION MEDIUM TO SHEAR STRESSES. THE PREFERRED DISPERSIONS ARE STABLE FOR AT LEAST 24 HOURS. THE DIAMOND POWDER USED IS CHARACTERIZED BY AN AVERAGE PARTICLE DIAMETER RANGE OF FROM ABOUT 7X10**-4 TO ABOUT 1X10**-2 MICRONS AND A SURFACE AREA OF BETWEEN ABOUT 40 AND ABOUT 400 SQUARE METERS PER GRAM.
Inventors
- 👤 Francis J Figiel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:25
CPC Classifications
B; B01; B01J; B01J13/00; B01J13/0004; B01J13/0008; C; C09; C09K; C09K23/00; C09K23/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |