Patent US3786041A successfully refreshed from Google Patents.
US3786041A
Expired / Lapsed
US
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Melamine-formaldehyde resin containing alumina hydrate
Assignee: Standard Oil Co
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Filing: 1972-12-08
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Granted: 1974-01-15
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Expires: 1992-12-08
Abstract
Abstract MELAMINE-FORMALDEHYDE MOLDING RESINS CONTAINING FROM ABOUT 10 TO ABOUT 900 PARTS OF ALUMINA HYDRATE PER HUNDRED PARTS OF RESIN ARE OUTSTANDING FOR PREPARING MOLDED RESIN ARTICLES REQUIRING EXCEPTIONAL HEAT AND LIGHT STABILITY AND A MINIMUM OF POST-MOLD SHRINKAGE.
Inventors
- 👤 H Talsma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:21
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08L; C08L61/00; C08L61/20; C08L61/26; C08L61/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |