US3832333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lactone reaction products
Assignee: PPG Industries Inc
•
Filing: 1973-10-16
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Granted: 1974-08-27
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Expires: 1993-10-16
Abstract
Abstract NOVEL LACTONE REACTION PRODUCTS ARE OBTAINED BY REACTIN A LACTONE WITH OR A POLYUREIDO COMPOUND. THESE REACTION PRODUCTS ARE USEFUL IN ELASTOMERIC COATING FORMULATIONS AND IN HIGH-SOLID COATING FORMULATIONS.
Inventors
- 👤 W Chang
- 👤 R Scriven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:18
CPC Classifications
C; C08; C08L; C08L67/00; C08L67/04; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/42; C08G18/4266; C08G18/4269; C08G63/00; C08G63/68; C08G63/685; C08G63/6852; C08L75/00; C08L75/04; C08L75/06
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) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |