Patent US2886518A successfully refreshed from Google Patents.
US2886518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recovering dust from gaseous streams
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1956-07-17
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Granted: 1959-05-12
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Expires: 1976-07-17
Abstract
No abstract record available.
Inventors
- 👤 Bernard L Schulman
- 👤 Walter G May
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:05
CPC Classifications
B; B01; B01D; B01D45/00; B01D45/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
IN A CATALIC HYDROFORMING PROCESS WHEREIN HOT HYDROFORMATE VAPORS CONTAIN CATALYST FINES OF A SIZE BELOW ABOUT 10 MICRONS, THE IMPROVEMENT WHICH COMPRISES COOLING SAID HYDROFORMATE VAPORS TO CONDENSE HIGHER BOILING POLYMERS FROM GASOLINE OR NAPHTHA VAPORS AND TO SCRUB OUT ENTRAINED CATALYST FINES, THEN PASSING HOT LIQUID POLUMER CONTAINING SAID CATALYST FINES AT A RELATIVELY SLOW VELOCITY THROUGH A HEAT EXCHANGE ZONE TO CAUSE DEPOSITION AND AGGLOMERATION OF FINES ON THE WALL OF SAID HEAT EXCHANGE ZONE AND TO PROVIDE LIQUID POLYMER SUBSTANTIALLY FREE OF FINES AND RECOVERING THE DEPOSITED FINES.
Claim 2
Dependent Claim
92 words
IN A CATALIC HYDROFORMING PROCESS WHEREIN HOT HYDROFORMATE VAPORS CONTAIN CATALYST FINES OF A SIZE BELOW ABOUT 10 MICRONS, THE IMPROVEMENT WHICH COMPRISES COOLING SAID HYDROFORMATE VAPORS TO CONDENSE HIGHER BOILING POLYMERS FROM GASOLINE OR NAPHTHA VAPORS AND TO SCRUB OUT ENTRAINED CATALYST FINES, THEN PASSING HOT LIQUID POLUMER CONTAINING SAID CATALYST FINES AT A RELATIVELY SLOW VELOCITY THROUGH A HEAT EXCHANGE ZONE TO CAUSE DEPOSITION AND AGGLOMERATION OF FINES ON THE WALL OF SAID HEAT EXCHANGE ZONE AND TO PROVIDE LIQUID POLYMER SUBSTANTIALLY FREE OF FINES AND RECOVERING THE DEPOSITED FINES.
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) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |