US3005033A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of olefins
Assignee: Monsanto Chemicals Ltd
•
Filing: 1959-06-22
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Granted: 1961-10-17
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Expires: 1979-06-22
Abstract
No abstract record available.
Inventors
- 👤 Robert M Engelbrecht
- 👤 Joseph Q Snyder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:20
CPC Classifications
C; C07; C07C; C07C2/00; C07C2/02; C07C2/04; C07C2/06; C07C2/08; C07C2/10; C07C2521/00; C07C2521/12; C07C2523/00; C07C2523/70; C07C2523/74; C07C2523/755
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
A PROCESS FOR POLYMERIZING POLYMERIZABLE OLEFINS WHICH COMPRISES CONTACTING AT LEAST ONE OF SAID OLEFINS WITH A CATALYST CONSISTING ESSENTIALLY OF NICKEL OXIDE-SILICAALUMINA CONTAINING FROM 0.001 TO 0.04 WEIGHT PERCENT, CALCULATED AS LITHIUM OXIDE, OF A LITHIUM COMPOUND CONVERTIBLE TO LITHIUM OXIDE UPON HEATING.
Claim 2
Dependent Claim
44 words
A PROCESS FOR POLYMERIZING POLYMERIZABLE OLEFINS WHICH COMPRISES CONTACTING AT LEAST ONE OF SAID OLEFINS WITH A CATALYST CONSISTING ESSENTIALLY OF NICKEL OXIDE-SILICAALUMINA CONTAINING FROM 0.001 TO 0.04 WEIGHT PERCENT, CALCULATED AS LITHIUM OXIDE, OF A LITHIUM COMPOUND CONVERTIBLE TO LITHIUM OXIDE UPON HEATING.
References Cited (Backward Citations)
US2881233A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-16 | 1965-04-17 | 1965-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-16 | 1969-04-17 | 1969-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-16 | 1973-04-17 | 1973-10-17 | $7700.00 | Window Closed / Lapsed |