US2500161A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conversion of 1-olefins in the presence of lead tetraacetate
Assignee: ExxonMobil Oil Corp
•
Filing: 1948-08-14
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Granted: 1950-03-14
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Expires: 1968-08-14
Abstract
No abstract record available.
Inventors
- 👤 Francis M Seger
- 👤 Alexander N Sachanen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:54
CPC Classifications
C; C07; C07C; C07C2/00; C07C2523/00; C07C2523/14; C07C2531/00; C07C2531/02; C07C2531/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
THE PROCESS FOR CONVERTING A NORMAL, ALPHA MONO-OLEFIN HAVING FROM SIX TO ABOUT TWELVE CARBON ATOMS PER MOLECULE, TO A VISCOUS OIL CHARACTERIZED BY HIGH VISCOSITY INDEX AND LOW POUR POINT, WHICH COMPRISES: HEATING SAID OLEFIN WITH LEAD TETRA-ACETATE AT A TEMPERATURE BETWEEN ABOUT 400*F. AND ABOUT 700*F. FOR A PERIOD OF TIME FROM ABOUT TEN HOURS TO ABOUT ONE HOUR, RESPECTIVELY, AND UNDER A PRESSURE SUFFICIENT TO MAINTAIN THE OLEFIN IN SUBSTANTIALLY THE LIQUID PHASE.
Claim 2
Dependent Claim
76 words
THE PROCESS FOR CONVERTING A NORMAL, ALPHA MONO-OLEFIN HAVING FROM SIX TO ABOUT TWELVE CARBON ATOMS PER MOLECULE, TO A VISCOUS OIL CHARACTERIZED BY HIGH VISCOSITY INDEX AND LOW POUR POINT, WHICH COMPRISES: HEATING SAID OLEFIN WITH LEAD TETRA-ACETATE AT A TEMPERATURE BETWEEN ABOUT 400*F. AND ABOUT 700*F. FOR A PERIOD OF TIME FROM ABOUT TEN HOURS TO ABOUT ONE HOUR, RESPECTIVELY, AND UNDER A PRESSURE SUFFICIENT TO MAINTAIN THE OLEFIN IN SUBSTANTIALLY THE LIQUID PHASE.
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 |