US3516978A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of olefinic compounds and catalysts therefor
Assignee: MORRIS R ORT
•
Filing: 1967-03-06
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Granted: 1970-06-23
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Expires: 1987-03-06
Abstract
No abstract record available.
Inventors
- 👤 Edward H Mottus
- 👤 Morris R Ort
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:07
CPC Classifications
B; B01; B01J; B01J37/00; B01J37/34; B01J37/348; C; C08; C08F; C08F10/00; C08F36/00; C08F36/02; C08F36/04; C25; C25B; C25B3/00; C25B3/01; C25B3/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2905646A
Cited
US3051690A
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US2984658A
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US2938020A
Cited
GB836642A
Cited
GB833929A
Cited
US3109838A
Cited
US3247173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |