Patent US2867675A successfully refreshed from Google Patents.
US2867675A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the polymerization of monoolefin and acetylene hydrocarbons
Assignee: Olin Corp
•
Filing: 1955-12-01
•
Granted: 1959-01-06
•
Expires: 1975-12-01
Abstract
No abstract record available.
Inventors
- 👤 Shapiro Isadore
- 👤 Harold G Weiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:02
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
PROCESS FOR THE POLYMERIZATION OF MONO-OLEFIN AND ACETYLENE HYDROCARBONS HAVING FROM TWO TO FOUR CARBON ATOMS WHICH COMPRISES CONTACTING SUCH HYDROCARBONS AT A TEMPERATURE OF ABOUT 10* C. TO 150* C. WITH A SURFACE MODIFIED OXIDE OF THE CLASS CONSISTING OF AT LEAST ONE OF SILICA, ALUMINA, AND MAGNESIA GELS CONTAINING CHEMICALLY COMBINED BORON IN THE SURFACE STURCTURE OF THE GEL, WHEREIN HYDROGEN ATOMS OF HYDROXYL GROUPS OF THE ORIGINAL GEL STRUCTURE HAVE BEEN REPLACED BY-BX2 RADICALS IN WHICH X IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN ATOMS AND HYDROXYL RADICALS.
Claim 2
Dependent Claim
92 words
PROCESS FOR THE POLYMERIZATION OF MONO-OLEFIN AND ACETYLENE HYDROCARBONS HAVING FROM TWO TO FOUR CARBON ATOMS WHICH COMPRISES CONTACTING SUCH HYDROCARBONS AT A TEMPERATURE OF ABOUT 10* C. TO 150* C. WITH A SURFACE MODIFIED OXIDE OF THE CLASS CONSISTING OF AT LEAST ONE OF SILICA, ALUMINA, AND MAGNESIA GELS CONTAINING CHEMICALLY COMBINED BORON IN THE SURFACE STURCTURE OF THE GEL, WHEREIN HYDROGEN ATOMS OF HYDROXYL GROUPS OF THE ORIGINAL GEL STRUCTURE HAVE BEEN REPLACED BY-BX2 RADICALS IN WHICH X IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN ATOMS AND HYDROXYL RADICALS.
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) | 1962-01-05 | 1962-07-07 | 1963-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-05 | 1966-07-07 | 1967-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-05 | 1970-07-07 | 1971-01-06 | $7700.00 | Window Closed / Lapsed |