US3351650A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2, 4-and 2, 6-lower alkyl cyclohexylene diisocyanate mixtures
Assignee: Bayer Corp
•
Filing: 1964-06-01
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Granted: 1967-11-07
•
Expires: 1984-06-01
Abstract
No abstract record available.
Inventors
- 👤 Cross James Martin
- 👤 Jr Sidney H Metzger
- 👤 Clyde D Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:11
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/74; C08G18/75; C08G18/751; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4006; C08G18/28; C08G18/30; C08G18/38; C08G18/3878; C08G18/3889; C08G2101/00; C08G2110/00; C08G2110/0025; C08G2350/00; C08G2380/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
AN ISOCYANATE MIXTURE OF AT LEAST 50 PERCENT 2,4LOWER ALKYL CYCLOHEXYLENE DIISOCYANATE AND AT LEAST 5 PERCENT 2,6-LOWER ALKYL CYCLOHEXYLENE DIISOCYANATE.
Claim 2
Dependent Claim
21 words
AN ISOCYANATE MIXTURE OF AT LEAST 50 PERCENT 2,4LOWER ALKYL CYCLOHEXYLENE DIISOCYANATE AND AT LEAST 5 PERCENT 2,6-LOWER ALKYL CYCLOHEXYLENE DIISOCYANATE.
References Cited (Backward Citations)
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Cited
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US2986576A
Cited
US3075928A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-06 | 1971-05-08 | 1971-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-06 | 1975-05-08 | 1975-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-06 | 1979-05-08 | 1979-11-07 | $7700.00 | Window Closed / Lapsed |