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US3044973A
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Molding composition comprising melamine formaldehyde resin and monomethylol melamine, and cured product thereof
Assignee: Wyeth Holdings LLC
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Filing: 1959-11-25
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Granted: 1962-07-17
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Expires: 1979-11-25
Abstract
No abstract record available.
Inventors
- 👤 Nicholas R Segro
- 👤 Jen Yun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:52
CPC Classifications
C; C08; C08L; C08L61/00; C08L61/20; C08L61/26; C08L61/28
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
65 words
A THERMOSETTING MOLDING COMPOSITION COMPRISING A FIBROUS FILLER AND AS THE RESINOUS COMPONENT A MIXTURE OF FROM ABOUT 40 TO 80 PARTS OF A HEAT-CURABLE RESINOUS CONDENSATE PREPARED FROM RESIN-FORMING REACTANTS CONSISTING ESSENTIALLY OF MELAMINE AND FORMALDEHYDE WHEREIN THE MOLAR RATIO OF MELAMINE TO FORMALDEHYDE IS FROM ABOUT 1:1.5 TO 1:3, RESPECTIVELY, AND CORRESPONDINGLY FROM ABOUT 60 TO 20 PARTS OF SEPARATELY PREPARED MONPMETHYLOL MELAMINE.
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) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |