Patent US1370185A successfully refreshed from Google Patents.
Patent US2848375A successfully refreshed from Google Patents.
US2848375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of basic nitrogen impurities from hydrocarbons with boric acid and a polyhydroxy organic compound
Assignee: Universal Oil Products Co
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Filing: 1956-02-06
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Granted: 1958-08-19
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Expires: 1976-02-06
Abstract
No abstract record available.
Inventors
- 👤 John G Gatsis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:13
CPC Classifications
C; C10; C10G; C10G21/00; C10G21/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
39 words
A PROCESS FOR THE REMOVAL OF NITROGEN CONTAINING BASIC IMPURITIES FROM A HYDROGEN FRACTION CONTAINING THE SAME WHICH COMPRISES TREATING SAID FRACTION WITH A SOLUTION COMPRISING BORIC ACID AND A POLYHYDROXY ORGANIC COMPOUND, AND RECOVERING THE PURIFIED HYDROCARBON FRACTION.
Claim 2
Dependent Claim
39 words
A PROCESS FOR THE REMOVAL OF NITROGEN CONTAINING BASIC IMPURITIES FROM A HYDROGEN FRACTION CONTAINING THE SAME WHICH COMPRISES TREATING SAID FRACTION WITH A SOLUTION COMPRISING BORIC ACID AND A POLYHYDROXY ORGANIC COMPOUND, AND RECOVERING THE PURIFIED HYDROCARBON FRACTION.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-18 | 1962-02-17 | 1962-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-18 | 1966-02-17 | 1966-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-18 | 1970-02-17 | 1970-08-19 | $7700.00 | Window Closed / Lapsed |