US3816558A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filled aldehyde condensates having improved heat resistance
Assignee: Monsanto Co
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Filing: 1973-01-18
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Granted: 1974-06-11
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Expires: 1993-01-18
Abstract
Abstract THERMOSETTABLE COMPOSITIONS OF A REACTIVE FILLER AND THERMOSETTABLE RESIN OF THE AMINOPLAST OR PHENOPLAST TYPE. THE FILLER IS A DEVOLATILIZED PRODUCT OF AROMATIC POLYCARBOXYLIC COMPOUND, AMINE MODIFIED NOVOLAC RESIN AND/OR AROMATIC AMINE-ALDEHYDE RESIN. THERMOSET ARTICLES MADE FROM SUCH COMPOSITIONS ARE CHARACTERIZED BY IMPROVED (HIGHER) SERVICE TEMPERATURES COMPARED TO THE UNFILLED RESIN.
Inventors
- 👤 R Huck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:16
CPC Classifications
C; C08; C08L; C08L61/00; C08G; C08G73/00; C08G73/06; C08G73/10; C08G73/1003; C08G73/1007; C08G73/101
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) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |