US3328356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating composition prepared from polyesters of epoxidized aliphatic acids and organic polyisocyanates
Assignee: Hercules LLC
•
Filing: 1963-03-28
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Granted: 1967-06-27
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Expires: 1983-03-28
Abstract
No abstract record available.
Inventors
- 👤 Brack Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:42
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/42; C08G18/4291
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
32 words
A POLYURETHANE COATING COMPOSITION COMPRISING THE REACTION PRODUCT OF AN ORGANIC POLYISOCYANATE AND AT LEAST ONE POLYOL CONTAINING AT LEAST 10% BY WEIGHT OF A LINEAR POLYMERIC ESTER HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
32 words
A POLYURETHANE COATING COMPOSITION COMPRISING THE REACTION PRODUCT OF AN ORGANIC POLYISOCYANATE AND AT LEAST ONE POLYOL CONTAINING AT LEAST 10% BY WEIGHT OF A LINEAR POLYMERIC ESTER HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
US3184439A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |