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Patent US3052622A successfully refreshed from Google Patents.
US3052622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrorefining of waxy petroleum residues
Assignee: Sunoco Inc
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Filing: 1960-05-17
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Granted: 1962-09-04
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Expires: 1980-05-17
Abstract
No abstract record available.
Inventors
- 👤 Herbert L Johnson
- 👤 Henry E Reif
- 👤 Schneider Abraham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:19
CPC Classifications
C; C10; C10G; C10G67/00; C10G67/02; C10G67/04; C10G67/0454; C10G67/0463
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
58 words
PROCESS FOR REFINING PETROLEUM RESIDUES WHICH COMPRISES: CONTAINING PETROLEUM RESIDUE WITH A SOLID HYRDROGENERATION IN THE PRESENCE OF HYDROGEN AT A TEMPERATURE WITHIN THE APPROXIMATE RANGE 600* F. TO 825* F. AND A PRESSURE WITHIN THE APPROXIMATE RANGE 1000 P.S.I.G. TO 3500 P.S.I.G. AND THEN SEPARATING AND RECOVER ING SUBSTANTIALLY ODOR-FREE RESIDUAL WAX FROM THE HYDROREFINED PETROLEUM RESIDUE.
Claim 2
Dependent Claim
58 words
PROCESS FOR REFINING PETROLEUM RESIDUES WHICH COMPRISES: CONTAINING PETROLEUM RESIDUE WITH A SOLID HYRDROGENERATION IN THE PRESENCE OF HYDROGEN AT A TEMPERATURE WITHIN THE APPROXIMATE RANGE 600* F. TO 825* F. AND A PRESSURE WITHIN THE APPROXIMATE RANGE 1000 P.S.I.G. TO 3500 P.S.I.G. AND THEN SEPARATING AND RECOVER ING SUBSTANTIALLY ODOR-FREE RESIDUAL WAX FROM THE HYDROREFINED PETROLEUM RESIDUE.
References Cited (Backward Citations)
US2956001A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |