Patent US4847072A successfully refreshed from Google Patents.
Patent US3024206A successfully refreshed from Google Patents.
US3024206A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing rounded plastic masses
Assignee: Minerals and Chemicals Philipp Corp
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Filing: 1958-04-14
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Granted: 1962-03-06
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Expires: 1978-04-14
Abstract
No abstract record available.
Inventors
- 👤 James B Duke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:00
CPC Classifications
B; B01; B01J; B01J37/00; B01J2/00; B01J37/0009
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A METHOD FOR PRODUCING ROUNDED MASSES WHICH COMPRISES FORMING ANGULAR PLASTIC HYDROPHILIC GRANULES COMPRISING A COMMINUTED MINERAL AND AN AQUEOUS LIQUID, CONTACTING SAID PLASTIC GRANULES WITH A LOW VISCOSITY HYDROCARBON LIQUID WHICH IS ESSENTIALLY NONREACTIVE WITH SAID GRANULES, AND TUMBLING SAID GRANULES WHILE IN CONTACT WITH SAID HYDROCARBON LIQUID FOR A TIME SUFFICIENT TO DEFORM ANGULARITIES OF SAID GRANULES SO AS TO PRODUCE ROUNDED GRANULES WITHOUT REMOVAL OF MATERIAL THEREFROM, AND ELIMINATING THE OIL FROM THE ROUNDED MASSES.
Claim 2
Independent Claim
78 words
A METHOD FOR PRODUCING ROUNDED MASSES WHICH COMPRISES FORMING ANGULAR PLASTIC HYDROPHILIC GRANULES COMPRISING A COMMINUTED MINERAL AND AN AQUEOUS LIQUID, CONTACTING SAID PLASTIC GRANULES WITH A LOW VISCOSITY HYDROCARBON LIQUID WHICH IS ESSENTIALLY NONREACTIVE WITH SAID GRANULES, AND TUMBLING SAID GRANULES WHILE IN CONTACT WITH SAID HYDROCARBON LIQUID FOR A TIME SUFFICIENT TO DEFORM ANGULARITIES OF SAID GRANULES SO AS TO PRODUCE ROUNDED GRANULES WITHOUT REMOVAL OF MATERIAL THEREFROM, AND ELIMINATING THE OIL FROM THE ROUNDED MASSES.
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) | 1965-03-05 | 1965-09-04 | 1966-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-05 | 1969-09-04 | 1970-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-05 | 1973-09-04 | 1974-03-06 | $7700.00 | Window Closed / Lapsed |