US3065276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylene oxide adducts of 2, 2-(hydroxyaryl) ethanols
Assignee: Union Carbide Corp
•
Filing: 1959-09-04
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Granted: 1962-11-20
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Expires: 1979-09-04
Abstract
No abstract record available.
Inventors
- 👤 Howard R Guest
- 👤 Robert K Barnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:29
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/48; C08G18/487; C08G18/4879; C07; C07C; C07C37/00; C07C37/11; C07C37/115
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
AS A COMPOSITION OF MATTER, A 2,2-(HYDROXYARYL)ETHANOL HYDROXYPOLYALKYLENEOXY ETHER OF THE FORMULA:
Claim 2
Dependent Claim
12 words
AS A COMPOSITION OF MATTER, A 2,2-(HYDROXYARYL)ETHANOL HYDROXYPOLYALKYLENEOXY ETHER OF THE FORMULA:
References Cited (Backward Citations)
US2843568A
Cited
US2859250A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |