US3210329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Complex catalysts comprising organometallic compound, metallic halides and dioxane for the polymerization of polar monomers
Assignee: Monsanto Co
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Filing: 1960-10-24
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Granted: 1965-10-05
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Expires: 1980-10-24
Abstract
No abstract record available.
Inventors
- 👤 Lloyd T Jenkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:59
CPC Classifications
C; C08; C08F; C08F4/00; C08F4/06; C08F4/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2608554A
Cited
GB809717A
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GB833579A
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US2961433A
Cited
US3050470A
Cited
GB832319A
Cited
US2927086A
Cited
US3050471A
Cited
US3088940A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |