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US3549572A
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Enhancement of resistance of olefin polymers to copper-catalyzed oxidative degradation
Assignee: Argus Chemical Corp
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Filing: 1968-04-17
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Granted: 1970-12-22
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Expires: 1988-04-17
Abstract
No abstract record available.
Inventors
- 👤 Motonobu Minagawa
- 👤 Kenichi Nakagawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:40
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C07; C07C; C07C323/00; C07C323/23; C07C323/39; C07C323/43; C07C323/44; C07C335/00; C07C335/04; C07C335/06; C07C335/08; C07C335/16; C07C337/00; C07C337/06; C07D; C07D249/00; C07D249/02; C07D249/08; C07D249/10; C07D249/14; C08K5/37
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3181971A
Cited
US3160680A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |