US3278569A
Expired / Lapsed
US
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Method for preparing esters from aromatic chloromethyl compounds
Assignee: United States Steel Corp
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Filing: 1963-10-25
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Granted: 1966-10-11
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Expires: 1983-10-25
Abstract
No abstract record available.
Inventors
- 👤 Albert W Simon
- 👤 Borough White Oak
- 👤 Myron H Wilt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:28
CPC Classifications
C; C07; C07C; C07C67/00; C07C67/10; C07C67/11; C07C2602/00; C07C2602/02; C07C2602/04; C07C2602/10; C07C2603/00; C07C2603/02; C07C2603/04; C07C2603/22; C07C2603/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
A METHOD, CARRIED OUT IN THE ABSENCE OF A CATALYST, FOR PREPARING AN ESTER OF THE GENERAL FORMULA
Claim 2
Independent Claim
18 words
A METHOD, CARRIED OUT IN THE ABSENCE OF A CATALYST, FOR PREPARING AN ESTER OF THE GENERAL FORMULA
References Cited (Backward Citations)
CH169040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |