Patent US3334468A successfully refreshed from Google Patents.
US3334468A
Expired / Lapsed
US
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Method of drying gas streams
Assignee: Dow Chemical Co
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Filing: 1966-10-27
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Granted: 1967-08-08
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Expires: 1986-10-27
Abstract
No abstract record available.
Inventors
- 👤 Leroy A Wilcox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:56
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
AN IMPROVED METHOD OF DRYING GAS STREAMS PROVIDING A UNIFORM MIXTURE CONSISTING ESSENTIALLY OF CALCIUM CHLORIDE AND AT LEAST ONE PARTICULATED ADDITIVE MATERIAL SELECTED FROM THE GROUP CONSISTING OF SODIUM CHLORIDE, AND SODIUM CARBONATE, SAID ADDITIVE MATERIAL BEING PRESENT IN AN AMOUNT BY WEIGHT OF FROM ABOUT 0.2 TO ABOUT 20 PERCENT AND WITHIN A SIZE RANGE OF FROM 14 TO 100 MESH, FORMING SAID MIXTURE INTO DISCRETE MASSES, PROVIDING A BED OF SAID DISCRETE MASSES, AND PASSING THE GAS STREAM TO BE DRIED THROUGH SAID BED.
Claim 2
Dependent Claim
87 words
AN IMPROVED METHOD OF DRYING GAS STREAMS PROVIDING A UNIFORM MIXTURE CONSISTING ESSENTIALLY OF CALCIUM CHLORIDE AND AT LEAST ONE PARTICULATED ADDITIVE MATERIAL SELECTED FROM THE GROUP CONSISTING OF SODIUM CHLORIDE, AND SODIUM CARBONATE, SAID ADDITIVE MATERIAL BEING PRESENT IN AN AMOUNT BY WEIGHT OF FROM ABOUT 0.2 TO ABOUT 20 PERCENT AND WITHIN A SIZE RANGE OF FROM 14 TO 100 MESH, FORMING SAID MIXTURE INTO DISCRETE MASSES, PROVIDING A BED OF SAID DISCRETE MASSES, AND PASSING THE GAS STREAM TO BE DRIED THROUGH SAID BED.
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) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |