US3330849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of organic isocyanates
Assignee: Pharmacia and Upjohn Co
•
Filing: 1964-05-05
•
Granted: 1967-07-11
•
Expires: 1984-05-05
Abstract
No abstract record available.
Inventors
- 👤 Ulrich Henri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:43
CPC Classifications
C; C07; C07C; C07C265/00; C07C265/14; C07C263/00; C07C263/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
AN ORGANIC ISOCYANATE HAVING AT LEAST ONE CARBON-ATTACHED ISOCYANATE MOIETY AND NO SULFONYL ISOCYANATE MOIETIES, STABILIZED AGAINST DISCOLOROATION BY HAVING INCORPORATED THEREWITH A STABILIZING AMOUNT OF AN ORGANIC SULFONYL ISOCYANATE.
Claim 2
Dependent Claim
30 words
AN ORGANIC ISOCYANATE HAVING AT LEAST ONE CARBON-ATTACHED ISOCYANATE MOIETY AND NO SULFONYL ISOCYANATE MOIETIES, STABILIZED AGAINST DISCOLOROATION BY HAVING INCORPORATED THEREWITH A STABILIZING AMOUNT OF AN ORGANIC SULFONYL ISOCYANATE.
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) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |