US3281446A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tolylene diisocyanates stabilized with 1-phenyl-2-thiourea
Assignee: Union Carbide Corp
•
Filing: 1963-05-09
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Granted: 1966-10-25
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Expires: 1983-05-09
Abstract
No abstract record available.
Inventors
- 👤 David T Manning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:18
CPC Classifications
C; C07; C07C; C07C265/00; C07C265/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
A SOLUTION OF TOLYLENE DIISOCYANATE AND FROM ABOUT 0.005 TO 5 PERCENT BY WEIGHT OF SAID DIISOCYANATE OF 1PHENYL-2-THIOUREA.
Claim 2
Dependent Claim
19 words
A SOLUTION OF TOLYLENE DIISOCYANATE AND FROM ABOUT 0.005 TO 5 PERCENT BY WEIGHT OF SAID DIISOCYANATE OF 1PHENYL-2-THIOUREA.
References Cited (Backward Citations)
US2885421A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |