Patent US2939880A successfully refreshed from Google Patents.
US2939880A
Expired / Lapsed
US
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Alkoxy-hydroxy substituted carboxylic acids and their esters and production thereof
Assignee: Union Carbide Corp
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Filing: 1958-11-19
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Granted: 1960-06-07
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Expires: 1978-11-19
Abstract
No abstract record available.
Inventors
- 👤 Amelio E Montagna
- 👤 Donald G Kubler
- 👤 Julius J Brezinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:24
CPC Classifications
C; C07; C07C; C07C59/00; C07C59/235; C07C59/305; C07C51/00; C07C51/09; C07C59/125
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
13 words
A PROCESS FOR PRODUCING ALKOXY-HYDROXY SUBSTITUTED CARBOXYLIC ACIDS REPRESENTED BY THE GENERAL FORMULA:
Claim 2
Dependent Claim
13 words
A PROCESS FOR PRODUCING ALKOXY-HYDROXY SUBSTITUTED CARBOXYLIC ACIDS REPRESENTED BY THE GENERAL FORMULA:
Claim 3
Dependent Claim
23 words
AS COMPOSITIONS OF MATTER, COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF ALKOXY-HYDROXY-SUBSTITUTED CARBOXYLIC ACIDS AND CARBOCYLIC ACID ESTERS REPRESENTED BY THE GENERAL FORMULA:
Claim 4
Dependent Claim
23 words
AS COMPOSITIONS OF MATTER, COMPOUNDS SELECTED FROM THE GROUP CONSISTING OF ALKOXY-HYDROXY-SUBSTITUTED CARBOXYLIC ACIDS AND CARBOCYLIC ACID ESTERS REPRESENTED BY THE GENERAL FORMULA:
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) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |