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Patent US3458430A successfully refreshed from Google Patents.
US3458430A
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Separation of hydrocarbon wax from mineral oil using dewaxing aids
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1967-05-15
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Granted: 1969-07-29
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Expires: 1987-05-15
Abstract
No abstract record available.
Inventors
- 👤 Richard O Henselman
- 👤 Vincent P Catto
- 👤 George R Williges
- 👤 William C Hollyday Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:13
CPC Classifications
C; C10; C10G; C10G73/00; C10G73/02; C10G73/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2158358A
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GB591621A
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US2798027A
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US2972641A
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US3131168A
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US3052623A
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US3108944A
Cited
US3037850A
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US3262873A
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US3239445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-28 | 1973-01-27 | 1973-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-28 | 1977-01-27 | 1977-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-28 | 1981-01-27 | 1981-07-29 | $7700.00 | Window Closed / Lapsed |