Patent US2506316A successfully refreshed from Google Patents.
US2506316A
Expired / Lapsed
US
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Forming hydrogel beads by spray contact
Assignee: Standard Oil Development Co
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Filing: 1945-05-14
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Granted: 1950-05-02
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Expires: 1965-05-14
Abstract
No abstract record available.
Inventors
- 👤 Jerry A Pierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:21
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/113; C01B33/12; C01B33/14; C01B33/152; C01B33/154; C01B33/1546; B; B01; B01J; B01J2/00; B01J2/02; B01J2/06; B01J2/08; B01J21/00; B01J21/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
PROCESS FOR PREPARING MINUTE SPHERICAL INORGANIC HYDROGEL PARTICLES FROM SEPARATE SOLUTIONS OF AT LEAST TWO DIRRERENT SOL-FORMING CONSTITUENTS WHICH COMPRISES MIXING SEPARATE SPRAYS OF THE SAID SOLUTIONS WHEREBY SOL PARTICLES ARE FORMED IN DISPERSE PHASE, CONDUCTING THE PARTICLES THUS FORMED, BY GRAVITY FLOW THROUGH A BODY OF LIQUID DURING THE TIME REQUIRED TO GEL THE SAID PARTICLES, AND COLLECTING AND SEPARATING SAID GELLED PARTICLES FROM THE SAID BODY OF LIQUID.
Claim 2
Dependent Claim
70 words
PROCESS FOR PREPARING MINUTE SPHERICAL INORGANIC HYDROGEL PARTICLES FROM SEPARATE SOLUTIONS OF AT LEAST TWO DIRRERENT SOL-FORMING CONSTITUENTS WHICH COMPRISES MIXING SEPARATE SPRAYS OF THE SAID SOLUTIONS WHEREBY SOL PARTICLES ARE FORMED IN DISPERSE PHASE, CONDUCTING THE PARTICLES THUS FORMED, BY GRAVITY FLOW THROUGH A BODY OF LIQUID DURING THE TIME REQUIRED TO GEL THE SAID PARTICLES, AND COLLECTING AND SEPARATING SAID GELLED PARTICLES FROM THE SAID BODY OF LIQUID.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-01 | 1953-10-31 | 1954-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-01 | 1957-10-31 | 1958-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-01 | 1961-10-31 | 1962-05-02 | $7700.00 | Window Closed / Lapsed |