US3206430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of polyamides with manganous hypophosphite or acetate and cerous oxalate
Assignee: Akzona Inc
•
Filing: 1961-11-03
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Granted: 1965-09-14
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Expires: 1981-11-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas F Corbin
- 👤 Lola M Ownbey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:25
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2671770A
Cited
GB767897A
Cited
US2887462A
Cited
US2985621A
Cited
US3002947A
Cited
DE1111376B
Cited
GB904972A
Cited
US3108091A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |