US3838103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curable aralkylene/phenol resins and the process of curing said resins using salicylic acid
Assignee: Solvay Solutions UK Ltd
•
Filing: 1972-09-05
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Granted: 1974-09-24
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Expires: 1992-09-05
Abstract
Abstract THE CURE RATE OF XYLOK RESIN CAN BE ACCELERATED BY ADMIXING CERTAIN ACIDS WITH THE HEXAMINE CURING AGENT NORMALLY EMPLOYED. ACIDS WHICH HAVE SO FAR BEEN GOUND TO BE SUITABLE INCLUDE A VARIETY OF ORGANIC ACIDS. SALICYCLIC ACID BEING PARTICULARLY USEFUL.
Inventors
- 👤 A Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:17
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/16; C08K5/34; C08K5/3467; C08K5/3477
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) | 1977-09-23 | 1978-03-25 | 1978-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-23 | 1982-03-25 | 1982-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-23 | 1986-03-25 | 1986-09-24 | $7700.00 | Window Closed / Lapsed |