US3103485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature
Assignee: —
•
Filing: 1960-02-12
•
Granted: 1963-09-10
•
Expires: 1980-02-12
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:35
CPC Classifications
C; C07; C07C; C07C11/00; C07C11/02; Y; Y10; Y10S; Y10S261/00; Y10S261/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
AN IMPROVED PROCESS FOR PREPARING PREDOMINANTLY STRAIGHT CHAIN OLEFINS IN THE C8 TO C18 RANGE ALONG WITH OLEFINS AND DIOLEFINS BOILING IN THE C2 TO C7 RANGE, WHICH COMPRISES CRACKINNG A LIGHT NAPHTHA IN A CRACKING ZONE IN THE PRESENCE OF STEAM AT TEMPERATURES IN THE RANGE OF 1300 TO 1500*F. AND UNDER CONDITIONS TO OBTAIN CONVERSIONS TO C3 OF ABOVE 40 WT. PERCENT, WITHDRAWING THE PRODUCT VAPORS FROM SAID CRACKING ZONE, IMMEDIATELY CONTACTING THE WITHDRAWN PRODUCT VAPORS, WITH 30 TO 70 WT. PERCENT OF A WAXY DISTILLATE BASED ON THE PRODUCT VAPORS THEREBY QUENCHING SAID PRODUCT VAPORS TO BELOW ABOUT 1000*F. IN FROM 0.2 TO 2 SECONDS AND ALSO OBTAINING THE MAJOR PROPORTION OF THE WAXY DISTILLATE CRACKING AT ABOUT 1100*F. AND SEPARATING A CUT HIGH IN C8 TO C18 OLEFINS AND A CUT HIGH IN C2 TO C5 OLEFINS AND DIOLEFINS FROM THE RESULTANT MIXTURE.
Claim 2
Dependent Claim
147 words
AN IMPROVED PROCESS FOR PREPARING PREDOMINANTLY STRAIGHT CHAIN OLEFINS IN THE C8 TO C18 RANGE ALONG WITH OLEFINS AND DIOLEFINS BOILING IN THE C2 TO C7 RANGE, WHICH COMPRISES CRACKINNG A LIGHT NAPHTHA IN A CRACKING ZONE IN THE PRESENCE OF STEAM AT TEMPERATURES IN THE RANGE OF 1300 TO 1500*F. AND UNDER CONDITIONS TO OBTAIN CONVERSIONS TO C3 OF ABOVE 40 WT. PERCENT, WITHDRAWING THE PRODUCT VAPORS FROM SAID CRACKING ZONE, IMMEDIATELY CONTACTING THE WITHDRAWN PRODUCT VAPORS, WITH 30 TO 70 WT. PERCENT OF A WAXY DISTILLATE BASED ON THE PRODUCT VAPORS THEREBY QUENCHING SAID PRODUCT VAPORS TO BELOW ABOUT 1000*F. IN FROM 0.2 TO 2 SECONDS AND ALSO OBTAINING THE MAJOR PROPORTION OF THE WAXY DISTILLATE CRACKING AT ABOUT 1100*F. AND SEPARATING A CUT HIGH IN C8 TO C18 OLEFINS AND A CUT HIGH IN C2 TO C5 OLEFINS AND DIOLEFINS FROM THE RESULTANT MIXTURE.
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) | 1966-09-09 | 1967-03-11 | 1967-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-09 | 1971-03-11 | 1971-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-09 | 1975-03-11 | 1975-09-10 | $7700.00 | Window Closed / Lapsed |