US2665265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synthetic resin compositions having improved light stability
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1951-08-27
•
Granted: 1954-01-05
•
Expires: 1971-08-27
Abstract
No abstract record available.
Inventors
- 👤 Burgess Arthur Reginald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:38
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/0091
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A COMPOSITION COMPRISING A SYNTHETIC RESIN SUBJECT TO DEGRADATION BY LIGHT AND AN EFFECTIVE AMOUNT NOT IN EXCESS OF 10% BY WEIGHT OF SAID RESIN OF A CHELATE COMPOUND OF A METAL SELECTED FROM THE GROUP CONSISTING OF COPPER AND NICKEL WITH AN AROMATIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF BENZENE AZO-P-CRESOL AND BENZENE AZO-B-NAPHTHOL.
Claim 2
Dependent Claim
56 words
A COMPOSITION COMPRISING A SYNTHETIC RESIN SUBJECT TO DEGRADATION BY LIGHT AND AN EFFECTIVE AMOUNT NOT IN EXCESS OF 10% BY WEIGHT OF SAID RESIN OF A CHELATE COMPOUND OF A METAL SELECTED FROM THE GROUP CONSISTING OF COPPER AND NICKEL WITH AN AROMATIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF BENZENE AZO-P-CRESOL AND BENZENE AZO-B-NAPHTHOL.
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) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |