US3219727A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermally stabilized oxymethylene polymers
Assignee: Celanese Corp
•
Filing: 1963-03-04
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Granted: 1965-11-23
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Expires: 1983-03-04
Abstract
No abstract record available.
Inventors
- 👤 Raymond J Kray
- 👤 Thomas J Dolce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 04:37
CPC Classifications
C; C08; C08L; C08L59/00; C08L59/02; C08L39/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A POLYMER COMPOSITION COMPRISING AN OXYMETHYLENE POLYMER AND A STABILIZING AMOUTN OF A VINYL POLYMER WITH AT LEAST 25% OF ITS UNITS HAVING SIDE CHAINS CONTAINING THE STRUCTURE
Claim 2
Dependent Claim
28 words
A POLYMER COMPOSITION COMPRISING AN OXYMETHYLENE POLYMER AND A STABILIZING AMOUTN OF A VINYL POLYMER WITH AT LEAST 25% OF ITS UNITS HAVING SIDE CHAINS CONTAINING 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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |