Patent US2616833A successfully refreshed from Google Patents.
US2616833A
Expired / Lapsed
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Treatment of hydrocarbon distillates
Assignee: Universal Oil Products Co
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Filing: 1951-03-01
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Granted: 1952-11-04
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Expires: 1971-03-01
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Chenicek
- 👤 Kenneth M Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:47
CPC Classifications
C; C10; C10G; C10G27/00; C10G27/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A COMBINATION PROCESS FOR PRODUCING A SUBSTANTIALLY SWEET HYDROCARBON DISTILLATE OF REDUCED GUM FORMATION WHICH COMPRISES TREATING A SOUR HYDROCARBON DISTILLATE WITH AN ALKALI METAL HYDROXIDE TO REMOVE A SUBSTANTIAL PROPORTION OF THE MERCAPTANS CONTAINED THEREIN, REGENERATING THE USED ALKALI METAL HYDROXIDE, COMMINGLING A PHENYLENE DIAMINE COMPOUND WITH THE TREATED HYDROCARBON DISTILLATE, AND SUBSEQUENTLY TREATING
Claim 2
Dependent Claim
55 words
A COMBINATION PROCESS FOR PRODUCING A SUBSTANTIALLY SWEET HYDROCARBON DISTILLATE OF REDUCED GUM FORMATION WHICH COMPRISES TREATING A SOUR HYDROCARBON DISTILLATE WITH AN ALKALI METAL HYDROXIDE TO REMOVE A SUBSTANTIAL PROPORTION OF THE MERCAPTANS CONTAINED THEREIN, REGENERATING THE USED ALKALI METAL HYDROXIDE, COMMINGLING A PHENYLENE DIAMINE COMPOUND WITH THE TREATED HYDROCARBON DISTILLATE, AND SUBSEQUENTLY TREATING
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-11-04 | 1956-05-05 | 1956-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-04 | 1960-05-05 | 1960-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-04 | 1964-05-05 | 1964-11-04 | $7700.00 | Window Closed / Lapsed |