US3431233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel piperidine n-oxide polyolefin stabilizers
Assignee: Asahi Kasei Corp
•
Filing: 1966-11-25
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Granted: 1969-03-04
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Expires: 1986-11-25
Abstract
No abstract record available.
Inventors
- 👤 Keisuke Murayama
- 👤 Syoji Morimura
- 👤 Saburo Akagi
- 👤 Tomoyuki Kurumada
- 👤 Ichiro Watanabe
- 👤 Atsushi Kitaoka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:11
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3432; C08K5/3435; C08K5/3442; C08K5/3445; C08K5/3447
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3334103A
Cited
US3361707A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |