Patent US3072814A successfully refreshed from Google Patents.
Patent US3337140A successfully refreshed from Google Patents.
US3337140A
Expired / Lapsed
US
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Dispersion process
Assignee: PPG Industries Inc
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Filing: 1964-06-03
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Granted: 1967-08-22
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Expires: 1984-06-03
Abstract
No abstract record available.
Inventors
- 👤 Edward F Wahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:58
CPC Classifications
B; B01; B01F; B01F23/00; B01F23/50; B01F23/53; B01F23/56; B01F27/00; B01F27/80; B01F27/93; B01F33/00; B01F33/80; B01F33/836; B01F33/8361; B01F33/83613; B02; B02C; B02C17/00; B02C17/14; B02C17/16; B01F2101/00; B01F2101/30; B01F27/05; B01F27/11; B01F27/115; B01F27/19; B01F27/191
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A PROCESS FOR REDUCING THE SIZE OF SOLID PARTICLES DISPERSED IN A LIQUID MEDIA, WHICH COMPRISES AGITATING SAID SOLID PARTICLES AND LIQUID MEDIA WITH MASS OF ZIRCONIUM OXIDE PELLETS COMPOSED PREDOMINANTLY OF A MEMBER OF THE CLASS CONSISTING OF PARTIALLY STABLIZED ZIRCONIUM OXIDE PARTICLES AND FULLY STABLIZED ZIRCONIUM OXIDE PARTICLES BOUND TOGETHER IN PELLET FORM WITH A MEMBER OF THE CLASS CONSISTING OF INORGANIC BINDERS AND ORGANIC BINDERS AND SEPARATING SAID PELLETS FROM THE LIQUID-SOLID DISPERSION.
Claim 2
Dependent Claim
76 words
A PROCESS FOR REDUCING THE SIZE OF SOLID PARTICLES DISPERSED IN A LIQUID MEDIA, WHICH COMPRISES AGITATING SAID SOLID PARTICLES AND LIQUID MEDIA WITH MASS OF ZIRCONIUM OXIDE PELLETS COMPOSED PREDOMINANTLY OF A MEMBER OF THE CLASS CONSISTING OF PARTIALLY STABLIZED ZIRCONIUM OXIDE PARTICLES AND FULLY STABLIZED ZIRCONIUM OXIDE PARTICLES BOUND TOGETHER IN PELLET FORM WITH A MEMBER OF THE CLASS CONSISTING OF INORGANIC BINDERS AND ORGANIC BINDERS AND SEPARATING SAID PELLETS FROM THE LIQUID-SOLID DISPERSION.
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) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |