US2885425A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of organic isocyanates
Assignee: EIDP Inc
•
Filing: 1956-01-27
•
Granted: 1959-05-05
•
Expires: 1976-01-27
Abstract
No abstract record available.
Inventors
- 👤 Spiegler Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:40
CPC Classifications
C; C07; C07C; C07C265/00; C07C265/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
51 words
AN ORGANIC ISOCYANATE OF THE CLASS CONSISTING OF ALIPHATIC, CYCLOALIPHATIC AND AROMATIC ISOCYANATES STABILIZED AGAINST DISCOLORATION BY HAVING DISSOLVED THEREIN FROM 0.01% TO 0.5% BY WEIGHT, BASED ON THE ISOCYANATE, OF OF AN ESSENTIALLY COLOELESS ORGANIC DISULFIDE OF THE GROUP CONSISTING OF ALIPHATIC DISULFIDES AND AROMATIC DISULFIDES OF THE BENZENE SERIES.
Claim 2
Dependent Claim
51 words
AN ORGANIC ISOCYANATE OF THE CLASS CONSISTING OF ALIPHATIC, CYCLOALIPHATIC AND AROMATIC ISOCYANATES STABILIZED AGAINST DISCOLORATION BY HAVING DISSOLVED THEREIN FROM 0.01% TO 0.5% BY WEIGHT, BASED ON THE ISOCYANATE, OF OF AN ESSENTIALLY COLOELESS ORGANIC DISULFIDE OF THE GROUP CONSISTING OF ALIPHATIC DISULFIDES AND AROMATIC DISULFIDES OF THE BENZENE SERIES.
References Cited (Backward Citations)
US2216752A
Cited
US2259861A
Cited
US2338669A
Cited
US2514625A
Cited
US2437867A
Cited
US2476779A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |