US3549569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyurethane coating compositions prepared from 1-isocyanato-3-isocyanatomethyl-3,5,5-trimethylcyclohexane
Assignee: NL SPENCER KELLOG Inc
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Filing: 1967-06-29
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Granted: 1970-12-22
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Expires: 1987-06-29
Abstract
No abstract record available.
Inventors
- 👤 Basil S Farah
- 👤 Herbert M Schroeder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:10
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/80; C08G18/8003; C08G18/8045; C08G18/08; C08G18/10; C08G18/28; C08G18/30; C08G18/302; C08G18/36; C08G18/65; C08G18/66; C08G18/6603; C08G18/6607; C08G18/6611; C08G18/74; C08G18/75; C08G18/751; C08G18/752; C08G18/753; C08G18/755; C08G18/8006; C08G18/8009; C08G18/8032
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |