Patent US2623056A successfully refreshed from Google Patents.
US2623056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drying oils and process for making
Assignee: —
•
Filing: —
•
Granted: 1952-12-23
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Expires: 1969-12-23
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:59
CPC Classifications
C; C10; C10M; C10M101/00; C10M101/04; C07; C07C; C07C69/00; C07C69/612; C08; C08G; C08G73/00; C08G73/06; C08G73/10; C08G73/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A NEUTRAL MONOMERIC ESTER OF A CYCLIC POLYCARBOXYLIC ACID, HAVING THE FORMULA A(COOY)N WHEREIN A IS THE HYDROCARBON-RING RESIDUE OF SAID POLYCARBOXYLIC ACID, AND Y IS THE RADICAL OF A MONOMERIC POLYESTER OF A POLYHYDRIC ALCOHOL HAVING AT LEAST 3 HYDROXYL GROUPS, ALL OF THESE GROUPS BUT ONE HAVING BEEN ESTERIFIED BY MONOCARBOXYLIC UNSATURATED FATTY ACIDS, SAID UNESTERIFIED HYDROXYL GROUPS BEING THE FATTY FUNCTIONAL GROUP IN SAID MONOMERIC POLYESTER CAPABLE OF REACTING WITH A CARBOXYL GROUP, AND WHEREIN N IS AN INTEGER OF AT LEAST 4.
Claim 2
Dependent Claim
86 words
A NEUTRAL MONOMERIC ESTER OF A CYCLIC POLYCARBOXYLIC ACID, HAVING THE FORMULA A(COOY)N WHEREIN A IS THE HYDROCARBON-RING RESIDUE OF SAID POLYCARBOXYLIC ACID, AND Y IS THE RADICAL OF A MONOMERIC POLYESTER OF A POLYHYDRIC ALCOHOL HAVING AT LEAST 3 HYDROXYL GROUPS, ALL OF THESE GROUPS BUT ONE HAVING BEEN ESTERIFIED BY MONOCARBOXYLIC UNSATURATED FATTY ACIDS, SAID UNESTERIFIED HYDROXYL GROUPS BEING THE FATTY FUNCTIONAL GROUP IN SAID MONOMERIC POLYESTER CAPABLE OF REACTING WITH A CARBOXYL GROUP, AND WHEREIN N IS AN INTEGER OF AT LEAST 4.
References Cited (Backward Citations)
GB419604A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |