US3526601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Groups va and vla metal oxide polymerization catalysts,catalyst preparation and polymerization process
Assignee: Standard Oil Co
•
Filing: 1968-01-22
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Granted: 1970-09-01
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Expires: 1988-01-22
Abstract
No abstract record available.
Inventors
- 👤 Peter Fotis Jr
- 👤 Omar O Juveland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:12
CPC Classifications
C; C08; C08F; C08F10/00; B; B01; B01J; B01J23/00; B01J23/16; B01J23/20; B01J23/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2826620A
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US2959577A
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US3033844A
Cited
US3244682A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-31 | 1974-03-02 | 1974-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-31 | 1978-03-02 | 1978-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-31 | 1982-03-02 | 1982-09-01 | $7700.00 | Window Closed / Lapsed |