US3590002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mixtures of 2,4'-diisocyanato dicyclohexylmethane with lower aliphatic and cycloaliphatic polyisocyanates
Assignee: Bayer Corp
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Filing: 1967-07-21
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Granted: 1971-06-29
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Expires: 1987-07-21
Abstract
Abstract 2,4''-DIISOCYANATO DICYCLOHEXYLMETHANE AND MIXTURES THEREOF WITH OTHER ISOCYANATES, PARTICULARLY POLYISOCYANATES, AS WELL AS POLYURETHANE PLASTIC PREPARED THEREFROM.
Inventors
- 👤 Eugene L Powers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:36
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/721; C08G18/74; C08G18/75; C08G18/758
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |