US3211676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition comprising polyvinyl chloride and hexamethoxymethyl melamine
Assignee: Wyeth Holdings LLC
•
Filing: 1962-06-11
•
Granted: 1965-10-12
•
Expires: 1982-06-11
Abstract
No abstract record available.
Inventors
- 👤 Frank R Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:00
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L61/00; C08L61/20; C08L61/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A COMPOSITION OF MATTER COMPRISING POLY(VINYL CHLORIDE) HAVING IN ADMIXTURE THEREWITH FROM ABOUT 50% TO 150%, BY WEIGHT, BASED ON THE WEIGHT OF THE POLY(VINYL CHLORIDE), OF HEXAMETHOXYMETHYL MELAMINE.
Claim 2
Dependent Claim
29 words
A COMPOSITION OF MATTER COMPRISING POLY(VINYL CHLORIDE) HAVING IN ADMIXTURE THEREWITH FROM ABOUT 50% TO 150%, BY WEIGHT, BASED ON THE WEIGHT OF THE POLY(VINYL CHLORIDE), OF HEXAMETHOXYMETHYL MELAMINE.
References Cited (Backward Citations)
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Cited
US2919206A
Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-11 | 1969-04-12 | 1969-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-11 | 1973-04-12 | 1973-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-11 | 1977-04-12 | 1977-10-12 | $7700.00 | Window Closed / Lapsed |