US2500755A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of cycle oil from high-temperature steam cracking process
Assignee: Standard Oil Development Co
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Filing: 1945-11-30
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Granted: 1950-03-14
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Expires: 1965-11-30
Abstract
No abstract record available.
Inventors
- 👤 Minor C K Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:21
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/04; C10G; C10G50/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
THE METHOD OF OBTAINING MORE VALUABLE PRODUCTS FROM A HIGH-TEMPERATURE STEAM CRACKED CYCLE OIL BOILING IN THE RANGE OF ABOUT 350*F. TO 700*F., WHICH COMPRISES CONTACTING SAID OIL IN LIQUID PHASE WITH AN ACTIVE POLYMERIZING ADSORBENT AT A SPACE VELOCITY BETWEEN 1/2 TO 2 VOLUMES OF THE OIL PER VOLUME OF THE ADSORBENT PER HOUR WHILE THE ADSORBENT IS AT A TEMPERATURE IN THE RANGE 350*F. TO 450*F.
Claim 2
Independent Claim
68 words
THE METHOD OF OBTAINING MORE VALUABLE PRODUCTS FROM A HIGH-TEMPERATURE STEAM CRACKED CYCLE OIL BOILING IN THE RANGE OF ABOUT 350*F. TO 700*F., WHICH COMPRISES CONTACTING SAID OIL IN LIQUID PHASE WITH AN ACTIVE POLYMERIZING ADSORBENT AT A SPACE VELOCITY BETWEEN 1/2 TO 2 VOLUMES OF THE OIL PER VOLUME OF THE ADSORBENT PER HOUR WHILE THE ADSORBENT IS AT A TEMPERATURE IN THE RANGE 350*F. TO 450*F.
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) | 1953-03-13 | 1953-09-12 | 1954-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-13 | 1957-09-12 | 1958-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-13 | 1961-09-12 | 1962-03-14 | $7700.00 | Window Closed / Lapsed |