US2602023A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystal manufacture
Assignee: Phillips Petroleum Co
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Filing: 1949-11-10
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Granted: 1952-07-01
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Expires: 1969-11-10
Abstract
No abstract record available.
Inventors
- 👤 Russell K Simms
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:34
CPC Classifications
C; C01; C01C; C01C1/00; C01C1/24; C01C1/242; B; B01; B01D; B01D9/00; B01D9/0018; B01D9/0022; B01D9/0036; B01D9/0059; C01C1/18; Y; Y10; Y10S; Y10S159/00; Y10S159/25
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
IN A PROCESS FOR THE PRODUCTION OF CRYSTALLINE MATERIAL BY SUPERSATURATING A SOLUTION THEREOF AND CONTACTING SAID SUPERSATURATED SOLUTION WITH ALREADY FORMED CRYSTALS THEREBY CAUSING THEM TO GROW, THE IMPROVEMENT WHICH COMPRISES REMOVING THE LARGEST CRYSTALS PRODUCED FROM THE BOTTOM OF THE CRYSTALLIZATION ZONE THROUGH A PLURALITY OF OUTLEST SYMMETRICALLY POSITIONED IN SAID BOTTOM MORE THAN HALF THE RADIUS OF SAID CRYSTALLIZATION ZONE FROM THE CENTER AXIS THEREOF, PASSING THUS REMOVED CRYSTALS IN THE FORM OF A MAGMA IN A COMPOSITE STREAM TO A SEPARATION ZONE AND
Claim 2
Dependent Claim
87 words
IN A PROCESS FOR THE PRODUCTION OF CRYSTALLINE MATERIAL BY SUPERSATURATING A SOLUTION THEREOF AND CONTACTING SAID SUPERSATURATED SOLUTION WITH ALREADY FORMED CRYSTALS THEREBY CAUSING THEM TO GROW, THE IMPROVEMENT WHICH COMPRISES REMOVING THE LARGEST CRYSTALS PRODUCED FROM THE BOTTOM OF THE CRYSTALLIZATION ZONE THROUGH A PLURALITY OF OUTLEST SYMMETRICALLY POSITIONED IN SAID BOTTOM MORE THAN HALF THE RADIUS OF SAID CRYSTALLIZATION ZONE FROM THE CENTER AXIS THEREOF, PASSING THUS REMOVED CRYSTALS IN THE FORM OF A MAGMA IN A COMPOSITE STREAM TO A SEPARATION ZONE AND
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) | 1955-07-01 | 1955-12-31 | 1956-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-01 | 1959-12-31 | 1960-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-01 | 1963-12-31 | 1964-07-01 | $7700.00 | Window Closed / Lapsed |