US3318863A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalyst and catalytic process
Assignee: Standard Oil Co
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Filing: 1962-06-28
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Granted: 1967-05-09
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Expires: 1982-06-28
Abstract
No abstract record available.
Inventors
- 👤 Omar O Juveland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:38
CPC Classifications
C; C08; C08F; C08F10/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
104 words
A PROCESS FOR POLYMERIZING AN ETHYLENICALLY UNSATURATED HYDROCARBON WHICH COMPRISES CONTACTING AN ETHYLENICALLY UNSATURATED HYDROCARBON UNDER PLYMERIZING CONDITIONS OF TEMPERATURE AND PRESSURE WITH A CATALYST CONSISTING ESENTIALLY OF A FIRST PARTIALLY-REDUCED TRANSITION METAL OXIDE ON A DIFFICULTLY REDUCIBLE SUPPORT AND A SECOND PARTIALLY-REDUCED TRANSITION METAL OXIDE ON A DIFFICULTLY REDUCIBEL SUPPORT, AND A PROMOTER SELECTED FROM THE GROUP CONSISTING OF METALS AND METAL HYDRIDES OF GROUPS 1 AND 2. OF THE PERIODIC CLASSIFICATION, SAID FIRST AND SAID SECOND PARTIALLY-REDUCED TRANSITION METAL OXIDES BEING DIFFERENT PARTIALLY-REDUCED TRANSITION METAL OXIDES WHICH PRODUCE A RELATIVELY HIGHER AND A RELATIVELY LOWER MOLECULAR WEIGHT POLYMER WHEN USED FOR POLYMERIZATION.
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) | 1970-05-08 | 1970-11-07 | 1971-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-08 | 1974-11-07 | 1975-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-08 | 1978-11-07 | 1979-05-09 | $7700.00 | Window Closed / Lapsed |