US3729471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triazine derivatives of bisphenols
Assignee: Ashland LLC
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Filing: 1969-12-16
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Granted: 1973-04-24
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Expires: 1989-12-16
Abstract
Abstract REACTION PRODUCTS OF A TRIAZINE COMPOUND SUCH AS A CYANURIC HALIDE AND A HINDERED BISPHENOL ARE OBTAINED. SUCH PRODUCTS ARE USEFUL AS ANTIOXIDANTS AND ULTRAVIOLET STABILIZERS IN VARIOUS COMPOSITIONS AND MATERIALS.
Inventors
- 👤 M Robin
- 👤 S Schulte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:55
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3467; C08K5/3477; C08K5/3492; C08K5/34924
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) | 1976-04-23 | 1976-10-23 | 1977-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-23 | 1980-10-23 | 1981-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-23 | 1984-10-23 | 1985-04-24 | $7700.00 | Window Closed / Lapsed |