US3326871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic conversion and catalysts
Assignee: Standard Oil Co
•
Filing: 1962-08-27
•
Granted: 1967-06-20
•
Expires: 1982-08-27
Abstract
No abstract record available.
Inventors
- 👤 John W Shepard
- 👤 Omar O Juveland
- 👤 Edwin F Peters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:32
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A METHOD OF PREPARING A CATALYST SUITABLE FOR POLYMERIZING TERMINAL VINYL OLEFINS OF THE TYPE HAVING A MINOR AMOUNT OF A TRANSITION HEAVY METAL OXIDE SELECTED FROM OXIDES OF METALS IN GROUP 4 OF THE PERIODIC TABLE EXTENDED ON A HIGH SURFACE AREA SUPPORT SELECTED FROM THE GROUP CONSISTING OF SILICA, ALUMINA, AND SILICA-ALUMINA, THE STEP WHEREBY A CATALYST OF IMPROVED ACTIVITY IS OBTAINED WHICH COMPRISES: CONTACTING SAID CATALYST WITH A HYDROGEN HALIDE IN THE VAPOR PHASE PRIOR TO USE.
Claim 2
Independent Claim
80 words
A METHOD OF PREPARING A CATALYST SUITABLE FOR POLYMERIZING TERMINAL VINYL OLEFINS OF THE TYPE HAVING A MINOR AMOUNT OF A TRANSITION HEAVY METAL OXIDE SELECTED FROM OXIDES OF METALS IN GROUP 4 OF THE PERIODIC TABLE EXTENDED ON A HIGH SURFACE AREA SUPPORT SELECTED FROM THE GROUP CONSISTING OF SILICA, ALUMINA, AND SILICA-ALUMINA, THE STEP WHEREBY A CATALYST OF IMPROVED ACTIVITY IS OBTAINED WHICH COMPRISES: CONTACTING SAID CATALYST WITH A HYDROGEN HALIDE IN THE VAPOR PHASE PRIOR TO USE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |