US3083174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of a petroleum resin with a phenolic resol compound
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1958-10-31
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Granted: 1963-03-26
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Expires: 1978-10-31
Abstract
No abstract record available.
Inventors
- 👤 Fefer Morton
- 👤 James V Fusco
- 👤 John B Riley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:11
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/28; C08F; C08F240/00; C08F8/00; C08F8/18; Y; Y10; Y10S; Y10S525/00; Y10S525/915
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
70 words
A PROCESS FOR PREPARING A PETROLEUM RESIN WHICH COMPRISES PASSING TO A REACTION ZONE A STEAM CRACKED PETROLEUM FRACTION BOILING WITHIN THE RANGE OF 15* TO 130* C. AND CONTAINING OLEFINS AND DIOLEFINS, CONTACTING SAID HYDROCARBON FRACTION IN SAID REACTION ZONE WITH A FRIEDELCRAFTS CATALYST AT A TEMPERATURE FROM -30* TO 90*C. UNTIL AT LEAST SOME RESIN HAS FORMED, ADDING TO SAID REACTION ZONE A COMPOUND OF THE FOLLOWING FORMULA:
References Cited (Backward Citations)
GB516344A
Cited
US2282456A
Cited
US2468413A
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US2728742A
Cited
US2837491A
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US2898325A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-03-25 | 1966-09-24 | 1967-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-25 | 1970-09-24 | 1971-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-25 | 1974-09-24 | 1975-03-26 | $7700.00 | Window Closed / Lapsed |