US2810455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of dehydrating gases
Assignee: WR Grace and Co
•
Filing: 1955-10-17
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Granted: 1957-10-22
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Expires: 1975-10-17
Abstract
No abstract record available.
Inventors
- 👤 Preston L Veltman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:59
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A METHOD FOR DEHYDRATING A GAS WHICH COMPRISES CONTACTING WET GAS WITH A DEHYDRATING COMPOSITION CONSISTING OF FINELY DIVIDED SOLID DESICCANT SUSPENDED IN AN INERT, NON-AQUEOUS, WATER MMISCIBLE, THERMALLY-STABLE LIQUID MEDIUM WHICH IS CAPABLE OF CIRCULATING THE DESICCANT AROUND A DRYING SYSTEM, AND SEPARATING DRIED GAS THEREFROM.
Claim 2
Independent Claim
47 words
A METHOD FOR DEHYDRATING A GAS WHICH COMPRISES CONTACTING WET GAS WITH A DEHYDRATING COMPOSITION CONSISTING OF FINELY DIVIDED SOLID DESICCANT SUSPENDED IN AN INERT, NON-AQUEOUS, WATER MMISCIBLE, THERMALLY-STABLE LIQUID MEDIUM WHICH IS CAPABLE OF CIRCULATING THE DESICCANT AROUND A DRYING SYSTEM, AND SEPARATING DRIED GAS THEREFROM.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |