US3436369A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyolefins stabilized with substituted methylene piperidine methylene piperidine-1-oxides
Assignee: Asahi Kasei Corp
•
Filing: 1967-07-12
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Granted: 1969-04-01
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Expires: 1987-07-12
Abstract
No abstract record available.
Inventors
- 👤 Atsushi Kitaoka
- 👤 Keisuke Murayama
- 👤 Syoji Morimura
- 👤 Saburo Akagi
- 👤 Tomoyuki Kurumada
- 👤 Ichiro Watanabe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:36
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/92; C07D211/94; C07D211/04; C07D211/68; C07D211/70; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3412; C08K5/3432; C08K5/3435
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3334103A
Cited
US3325499A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |