Patent US5212733A successfully refreshed from Google Patents.
Patent US3098035A successfully refreshed from Google Patents.
US3098035A
Expired / Lapsed
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Slime control in heavy-media ore separation
Assignee: Union Carbide Corp
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Filing: 1960-07-25
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Granted: 1963-07-16
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Expires: 1980-07-25
Abstract
No abstract record available.
Inventors
- 👤 Frank F Aplan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:19
CPC Classifications
B; B03; B03B; B03B13/00; B03B13/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
IN HEAVY-MEDIA SUSPENSION PROCESSES FOR THE FRACTIONATION AD RECOVERY OF COMMINUTED MATERIALS WHEREIN THE COMMINUTED MATERIALS ARE CHARGED INTO A SLIME-CONTANING HEAVY-MEDIA SUSPENSION MAINTAINED AT A SPECIFIC GRAVITY INTERMEDIATE BETWEEN THE SPECIFIC GRAVITIES OF THE COMPONENTS OF THE COMMINUTED MATERIALS WHEREBY A FLOAT AND A SINK PRODUCT IS FRACTIONED, THE IMPROVEMENT COMPRISING ADDING TO SAID HESVY-MEDIA SUSPENSION SODIUM HEXAMETAPHOSPHATE IN AN AMOUNT BETWEEN ABOUT 0.008 AND ABOUT 0.2 PERCENT BY WEIGHT OF THE SOLIDS IN SAID SUSPENSION.
Claim 2
Dependent Claim
77 words
IN HEAVY-MEDIA SUSPENSION PROCESSES FOR THE FRACTIONATION AD RECOVERY OF COMMINUTED MATERIALS WHEREIN THE COMMINUTED MATERIALS ARE CHARGED INTO A SLIME-CONTANING HEAVY-MEDIA SUSPENSION MAINTAINED AT A SPECIFIC GRAVITY INTERMEDIATE BETWEEN THE SPECIFIC GRAVITIES OF THE COMPONENTS OF THE COMMINUTED MATERIALS WHEREBY A FLOAT AND A SINK PRODUCT IS FRACTIONED, THE IMPROVEMENT COMPRISING ADDING TO SAID HESVY-MEDIA SUSPENSION SODIUM HEXAMETAPHOSPHATE IN AN AMOUNT BETWEEN ABOUT 0.008 AND ABOUT 0.2 PERCENT BY WEIGHT OF THE SOLIDS IN SAID SUSPENSION.
References Cited (Backward Citations)
US2899392A
Cited
US2108495A
Cited
US2140899A
Cited
FR830341A
Cited
US2333347A
Cited
US2309931A
Cited
US2393160A
Cited
US2932395A
Cited
US2868618A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |