Patent US3488374A successfully refreshed from Google Patents.
US3488374A
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US
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Preparation of polyisocyanate compositions
Assignee: Olin Corp
•
Filing: 1965-10-04
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Granted: 1970-01-06
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Expires: 1985-10-04
Abstract
No abstract record available.
Inventors
- 👤 Ehrenfried H Kober
- 👤 George Rozsa
- 👤 Wilhelm J Schnabel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:27
CPC Classifications
C; C07; C07C; C07C263/00; C07C263/10; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/74; C08G18/76; C08G18/7607; C08G18/7657; C08G18/7664
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) | 1973-01-05 | 1973-07-07 | 1974-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-05 | 1977-07-07 | 1978-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-05 | 1981-07-07 | 1982-01-06 | $7700.00 | Window Closed / Lapsed |