Patent US3104157A successfully refreshed from Google Patents.
US3104157A
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Universal caustic regeneration process
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1961-03-21
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Granted: 1963-09-17
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Expires: 1981-03-21
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles Newton Kimberlin
- 👤 Jr William Floyd Arey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:41
CPC Classifications
C; C01; C01D; C01D1/00; C01D1/04; C01D1/28; C01D1/32; Y; Y10; Y10S; Y10S423/00; Y10S423/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
AN IMPROVED PROCESS FOR THE REGENERATION OF A SPENT POTASIUM HYDROXIDE SOLUTION CONTAINING MERCAPTIDES, SULFIDES, NAPTHENATES AND PHENOLIC CONTAMINANTS WHICH COMPRISES TREATING SAID SOLUTION WITH A HYDROGEN SULFIDE CONTAINING GAS, WITHDRAWING INSOLUBLE MATERIALS FROM
Claim 2
Dependent Claim
34 words
AN IMPROVED PROCESS FOR THE REGENERATION OF A SPENT POTASIUM HYDROXIDE SOLUTION CONTAINING MERCAPTIDES, SULFIDES, NAPTHENATES AND PHENOLIC CONTAMINANTS WHICH COMPRISES TREATING SAID SOLUTION WITH A HYDROGEN SULFIDE CONTAINING GAS, WITHDRAWING INSOLUBLE MATERIALS FROM
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) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |