US3210155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating aluminum containing ores
Assignee: Ormet Corp
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Filing: 1962-05-15
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Granted: 1965-10-05
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Expires: 1982-05-15
Abstract
No abstract record available.
Inventors
- 👤 Lloyd A Cagnolatti
- 👤 Karl B Kellogg
- 👤 Harry I Abboud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:44
CPC Classifications
C; C01; C01F; C01F7/00; C01F7/02; C01F7/04; C01F7/06; C01F7/066
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
IN THE METHOD OF BENEFICIATING ALUMINA ORE BY THE BAYER PROCESS, THE IMPROVEMENT WHICH COMPRISES PROVIDING A MUD SLURRY IN THE MUD WASHING CYCLE, SEPARATING A FIRST AND A SECOND SIDE STREAM OF WASH LIQUOR FROM SAID MUD SLURRY, HEATING THE FIRST SUCH SIDE STREAM, AND ADDING UNSLAKED LIME THERETO WITH AGITATION TO SLAKE LIME AND TO CAUTICIZE THE CONTENTS OF SAID STREAM, COMBINING SAID FIRST AND SECOND SIDE STREAMS AND AGITATING THE COMBINED
Claim 2
Dependent Claim
74 words
IN THE METHOD OF BENEFICIATING ALUMINA ORE BY THE BAYER PROCESS, THE IMPROVEMENT WHICH COMPRISES PROVIDING A MUD SLURRY IN THE MUD WASHING CYCLE, SEPARATING A FIRST AND A SECOND SIDE STREAM OF WASH LIQUOR FROM SAID MUD SLURRY, HEATING THE FIRST SUCH SIDE STREAM, AND ADDING UNSLAKED LIME THERETO WITH AGITATION TO SLAKE LIME AND TO CAUTICIZE THE CONTENTS OF SAID STREAM, COMBINING SAID FIRST AND SECOND SIDE STREAMS AND AGITATING THE COMBINED
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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |