US3210428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyols from 2-hydroxymethyl-1, 3-dioxolane and phenolic compounds
Assignee: Union Carbide Corp
•
Filing: 1959-09-04
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Granted: 1965-10-05
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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
2026-10-28 23:23
CPC Classifications
C; C10; C10M; C10M1/00; C10M1/08; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/18; C10L1/182; C10L1/183; C10L1/1835; C10L1/185; C10L1/1852; C10L1/20; C10L1/203; C10L1/22; C10L1/23; C10L1/231; C10M2207/00; C10M2207/02; C10M2207/023; C10M2207/024; C10M2207/025; C10M2207/04; C10M2207/046; C10M2211/00; C10M2211/04; C10M2211/042; C10M2211/06; C10M2215/00; C10M2215/20; C10M2215/202
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
4 words
2,2-BIS(HYDROXYPHENYL)ETHANOL OF THE FORMULA:
Claim 2
Dependent Claim
4 words
2,2-BIS(HYDROXYPHENYL)ETHANOL OF THE FORMULA:
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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |