US2910139A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drying of gases
Assignee: Phillips Petroleum Co
•
Filing: 1957-04-03
•
Granted: 1959-10-27
•
Expires: 1977-04-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles Matyear
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:15
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/26; F; F26; F26B; F26B21/00; F26B21/30; F26B21/33; F26B21/331
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
39 words
A METHOD FOR DEHYDRATING A HYDROCARBON GAS WHICH COMPRISES PASSING SAID GAS CONTAINING A SUBSTANTIAL AMOUNT OF MOISTURE INTO CONTACT WITH A NON-MOLECULAR SIEVE CONVENTIONAL DEHYDRATING AGENT AND THEN, WITHOUT INTERMEDIATE TREATMENT, INTO CONTACT WITH A MOLECULAR SIEVE MATERIAL.
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) | 1962-10-26 | 1963-04-27 | 1963-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-26 | 1967-04-27 | 1967-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-26 | 1971-04-27 | 1971-10-27 | $7700.00 | Window Closed / Lapsed |