US2877173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydroforming process
Assignee: Standard Oil Co
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Filing: 1955-03-23
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Granted: 1959-03-10
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Expires: 1975-03-23
Abstract
No abstract record available.
Inventors
- 👤 Jr Henry C Thorne
- 👤 Harold M Belkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:18
CPC Classifications
C; C10; C10G; C10G61/00; C10G61/02; C10G61/06; C10G21/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A PROCESS WHICH COMPRISES (1) REFORMING A NAPHTHENE-CONTAINING PETROLEUM NAPTHA IN THE PRESENCE OF HYDROGEN AND A CATALYST CONSISTING ESSENTIALLY OF MOLYBENUM OXIDE ON AN ALUMINA SUPPORT, (2) DISTILLING THE LIQUID PRODUCT TO OBTAIN A REFORMATE CONTAINING AROMATICS AND UNCOVERTED NAPHTENES, (3) SOLVENT EXTRACTING SAID REFORMATE WITH A GLYCOLIC SOLVENT UNDER CONDITIONS TO PRODUCE AN ESSENTIALLY PURE AROMATIC EXTRACT AND A SUBSTANTIALLY AROMATIC-FREE RAFFINATE, AND (4) CYCLING RAFFINATE TO THE REFORMING OPERATION FOR REFORMING ALONG WITH SAID NAPHTHA.
Claim 2
Dependent Claim
78 words
A PROCESS WHICH COMPRISES (1) REFORMING A NAPHTHENE-CONTAINING PETROLEUM NAPTHA IN THE PRESENCE OF HYDROGEN AND A CATALYST CONSISTING ESSENTIALLY OF MOLYBENUM OXIDE ON AN ALUMINA SUPPORT, (2) DISTILLING THE LIQUID PRODUCT TO OBTAIN A REFORMATE CONTAINING AROMATICS AND UNCOVERTED NAPHTENES, (3) SOLVENT EXTRACTING SAID REFORMATE WITH A GLYCOLIC SOLVENT UNDER CONDITIONS TO PRODUCE AN ESSENTIALLY PURE AROMATIC EXTRACT AND A SUBSTANTIALLY AROMATIC-FREE RAFFINATE, AND (4) CYCLING RAFFINATE TO THE REFORMING OPERATION FOR REFORMING ALONG WITH SAID NAPHTHA.
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) | 1962-03-09 | 1962-09-08 | 1963-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-09 | 1966-09-08 | 1967-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-09 | 1970-09-08 | 1971-03-10 | $7700.00 | Window Closed / Lapsed |