Patent US3484399A successfully refreshed from Google Patents.
US3484399A
Expired / Lapsed
US
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Stabilization of oxymethylene polymers
Assignee: Celanese Corp
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Filing: 1966-05-16
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Granted: 1969-12-16
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Expires: 1986-05-16
Abstract
No abstract record available.
Inventors
- 👤 Michael J Kakos Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:15
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)
US2871220A
Cited
US3344119A
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US3087913A
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US3236929A
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US3366561A
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US3275604A
Cited
US3271369A
Cited
US3340219A
Cited
US3240753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-15 | 1973-06-16 | 1973-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-15 | 1977-06-16 | 1977-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-15 | 1981-06-16 | 1981-12-16 | $7700.00 | Window Closed / Lapsed |