US2886601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilisation of phenols by diamines
Assignee: Imperial Chemical Industries Ltd
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Filing: 1957-06-27
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Granted: 1959-05-12
•
Expires: 1977-06-27
Abstract
No abstract record available.
Inventors
- 👤 Clough Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:20
CPC Classifications
C; C07; C07C; C07C37/00; C07C37/68; C07C37/88
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
25 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF AT LEAST ONE AIR-OXIDIZABLE PHENOL IN COMBINATION WITH A SMALL AMOUNT OF A STABILIZING COMPOUND HAVING THE STRUCTURE:
Claim 2
Dependent Claim
25 words
A COMPOSITION OF MATTER CONSISTING ESSENTIALLY OF AT LEAST ONE AIR-OXIDIZABLE PHENOL IN COMBINATION WITH A SMALL AMOUNT OF A STABILIZING COMPOUND HAVING THE STRUCTURE:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-11 | 1962-11-10 | 1963-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-11 | 1966-11-10 | 1967-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-11 | 1970-11-10 | 1971-05-12 | $7700.00 | Window Closed / Lapsed |