US2530129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drying gases
Assignee: Standard Oil Development Co
•
Filing: 1944-12-02
•
Granted: 1950-11-14
•
Expires: 1964-12-02
Abstract
No abstract record available.
Inventors
- 👤 James H Mcateer
- 👤 Charles E Morrell
- 👤 James K Small
- 👤 Howard L Yowell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:13
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/34; B01D53/26; C; C01; C01B; C01B32/00; C01B32/50; C01B32/55
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
53 words
IN A PROCESS OF DRYING, BY MEANS OF AN OXIDE GEL, AN INDUSTRIAL GAS WHICH IS CHEMICALLY ALTERED BY CONTACT WITH THE GEL, THE IMPROVEMENT WHICH COMPRISES TREATING THE OXIDE GEL WITH A SMALL AMOUNT OF A HYDROGEN HALIDE WHEREBY THE CATALYTIC ACTIVITY OF THE OXIDE GEL TOWARD THE GAS IS SUBSTANTIALLY REDUCED.
References Cited (Backward Citations)
US1976875A
Cited
US2137605A
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US2276893A
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US2300235A
Cited
US2293901A
Cited
US2339685A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-13 | 1954-05-15 | 1954-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-13 | 1958-05-15 | 1958-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-13 | 1962-05-15 | 1962-11-14 | $7700.00 | Window Closed / Lapsed |