Patent US3274149A successfully refreshed from Google Patents.
US3274149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxymethylene polymers stabilized with amino substituted amides
Assignee: Celanese Corp
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Filing: 1963-02-13
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Granted: 1966-09-20
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Expires: 1983-02-13
Abstract
No abstract record available.
Inventors
- 👤 Frank M Berardinelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 07:51
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
1,. A POLYMER COMPOSITION COMPRISING AN OXYMETHYLENE POLYMER HAVING A MELTING POINT OF AT LEAST 150*C. AND A STABILIZING AMOUNT OF A COMPOUND HAVING THE STRUCTURE
Claim 2
Dependent Claim
26 words
1,. A POLYMER COMPOSITION COMPRISING AN OXYMETHYLENE POLYMER HAVING A MELTING POINT OF AT LEAST 150*C. AND A STABILIZING AMOUNT OF A COMPOUND HAVING THE STRUCTURE
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |