US3557031A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stain-resistant molding composition
Assignee: Standard Oil Co
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Filing: 1968-08-13
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Granted: 1971-01-19
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Expires: 1988-08-13
Abstract
Abstract STAIN-RESISTANT MOLDED ARTICLES CAN BE PREPRARED FROM STANDARD, NON-STAIN RESISTANT MELAMINE-FORMALDEHYDE MOLDING POWDER BY DRY-BLENDING MINOR AMOUNTS OF CERTAIN AMIDES INTO THE MOLDING POWDER PRIOR TO THE MOLDING OPERATION.
Inventors
- 👤 Norman W Standish
- 👤 Richard W Yanik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:15
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/20; 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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |