US3061539A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrogen fluoride treatment of coking and cracking feed stock
Assignee: ExxonMobil Technology and Engineering Co
•
Filing: 1960-05-25
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Granted: 1962-10-30
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Expires: 1980-05-25
Abstract
No abstract record available.
Inventors
- 👤 Moritz Karsten Herbert
- 👤 Hamner Glen Porter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:52
CPC Classifications
C; C10; C10G; C10G55/00; C10G55/02; C10G51/00; C10G51/02; C10G51/04; C10G61/00; C10G61/02; C10G61/06; C10G67/00; C10G67/02; C10G67/06; C10G69/00; C10G69/02; C10G69/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A PROCESS FOR CONVERTING HIGH BOILING HYDROCARBONS CONTAINING CRACKING CATALYST CONTAMINATING MATERIALS WHICH COMPRISES TREATING IN A CONTACTING ZONE SUCH A HIGH BOILING HYDROCARBON FRACTION WITH HYDROGEN FLUORIDE AT AN ELEVATED TEMPERATURE, SEPARATING AN OIL PHASE SUBSTANTIALLY FREE OF HYDROGEN FLOURIDE, PASSING SAID OIL PHASE DIRECTLY WITHOUT FILTRATION TO A COKING ZONE TO CRACK SAID
Claim 2
Dependent Claim
55 words
A PROCESS FOR CONVERTING HIGH BOILING HYDROCARBONS CONTAINING CRACKING CATALYST CONTAMINATING MATERIALS WHICH COMPRISES TREATING IN A CONTACTING ZONE SUCH A HIGH BOILING HYDROCARBON FRACTION WITH HYDROGEN FLUORIDE AT AN ELEVATED TEMPERATURE, SEPARATING AN OIL PHASE SUBSTANTIALLY FREE OF HYDROGEN FLOURIDE, PASSING SAID OIL PHASE DIRECTLY WITHOUT FILTRATION TO A COKING ZONE TO CRACK SAID
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) | 1965-10-29 | 1966-04-30 | 1966-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-29 | 1970-04-30 | 1970-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-29 | 1974-04-30 | 1974-10-30 | $7700.00 | Window Closed / Lapsed |