US2607482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Selective separation of gel particles
Assignee: ExxonMobil Oil Corp
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Filing: 1951-04-09
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Granted: 1952-08-19
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Expires: 1971-04-09
Abstract
No abstract record available.
Inventors
- 👤 Paul B Weisz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:47
CPC Classifications
B; B01; B01J; B01J13/00; B01J13/0052; B01J13/0069; B01J21/00; Y; Y10; Y10S; Y10S209/00; Y10S209/906
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A METHOD FOR SELECTIVELY SEPARATING PARTIALLY DRIED SPHERICAL PARTICLES OF INORGANIC GEL, A PORTION OF WHICH HAVE UNDERGONE SUBSTANTIALLY COMPLETE SHRINKAGE AND THE REMAINDER OF WHICH HAVE NOT YET ATTAINED SUBSTANTIALLY COMPLETE SHRINKAGE, WHICH COMPRISES DROPPING SAID PARTICLES FROM A PRE-DETERMINED HEIGHT ONTO AN INCLINED BASE OF SUFFICIENT HARDNESS AS TO CAUSE THE PARTICLES TO REBOUND, AND COLLECTING THE PARTICLES OF LESSER TRAJECTORY IN ONE RECEPTACLE AND THE PARTICLES OF GREATER TRAJECTORY IN A SECOND RECEPTACLE.
Claim 2
Independent Claim
76 words
A METHOD FOR SELECTIVELY SEPARATING PARTIALLY DRIED SPHERICAL PARTICLES OF INORGANIC GEL, A PORTION OF WHICH HAVE UNDERGONE SUBSTANTIALLY COMPLETE SHRINKAGE AND THE REMAINDER OF WHICH HAVE NOT YET ATTAINED SUBSTANTIALLY COMPLETE SHRINKAGE, WHICH COMPRISES DROPPING SAID PARTICLES FROM A PRE-DETERMINED HEIGHT ONTO AN INCLINED BASE OF SUFFICIENT HARDNESS AS TO CAUSE THE PARTICLES TO REBOUND, AND COLLECTING THE PARTICLES OF LESSER TRAJECTORY IN ONE RECEPTACLE AND THE PARTICLES OF GREATER TRAJECTORY IN A SECOND RECEPTACLE.
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) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |