US3284531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removing carbonyl sulfide with an anhydrous, basic, anion resin
Assignee: Dow Chemical Co
•
Filing: 1965-07-06
•
Granted: 1966-11-08
•
Expires: 1985-07-06
Abstract
No abstract record available.
Inventors
- 👤 Shaw Kernal Glenn
- 👤 Stanley A Murdock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:38
CPC Classifications
C; C07; C07C; C07C7/00; C07C7/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
A PROCESS FOR THE REMOVAL OF CARBONYL SULFIDE FROM FLUID HYDROCARBONS CONTAINING CARBONYL SULFIDE WHICH COMPRISES CONTACTING SAID FLUID, AT NORMAL ATMOSPHERIC TEMPERATURES, WITH AN ANHYDROS, WEAKLY BASIC, ANION EXCHANGE RESIN.
Claim 2
Dependent Claim
31 words
A PROCESS FOR THE REMOVAL OF CARBONYL SULFIDE FROM FLUID HYDROCARBONS CONTAINING CARBONYL SULFIDE WHICH COMPRISES CONTACTING SAID FLUID, AT NORMAL ATMOSPHERIC TEMPERATURES, WITH AN ANHYDROS, WEAKLY BASIC, ANION EXCHANGE RESIN.
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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |