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Patent US3248375A successfully refreshed from Google Patents.
US3248375A
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US
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Ethylene/vinyl chloride copolymerization using triethylborane and oxygen as cocatalysts at high pressure
Assignee: Monsanto Co
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Filing: 1959-06-10
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Granted: 1966-04-26
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Expires: 1979-06-10
Abstract
No abstract record available.
Inventors
- 👤 Lowell E Erbaugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:09
CPC Classifications
C; C08; C08F; C08F214/00; C08F214/02; C08F214/04; C08F214/06; Y; Y10; Y10S; Y10S526/00; Y10S526/915
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2388178A
Cited
US2422392A
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US2685575A
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US2683141A
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US2840551A
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US2985633A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |