Patent US2981705A successfully refreshed from Google Patents.
US2981705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkyd resins modified with 2, 5-dihydroxybenzoic acid
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1959-10-02
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Granted: 1961-04-25
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Expires: 1979-10-02
Abstract
No abstract record available.
Inventors
- 👤 Raymond L Heinrich
- 👤 David A Berry
- 👤 Robert L Christian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:16
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
AN ALKYD RESIN COMPOSITION COMPRISING THE INTERCONDENSATION PRODUCT OF ABOUT 3.1 TO ABOUT 3.4 MOL EQUIVALENTS OF A POLYOL CONTAINING AN AVERAGE OF FROM ABOUT 2.5 TO 4.5 HYDROXYL GROUPS PER MOLECULE WITH FROM ABOUT 2 TO 2.5 MOL EQUIVALENTS OF A POLYCARBOXYLIC ACID AND, CORRESPONDINGLY, FROM ABOUT 1 TO ABOUT 0.5 MOL EQUIVALENT OF A MODIFIER COMPONENT CONSISTING OF ABOUT 35 TO 45 MOL PERCENT OF AN UNSATURATED FATTY ACID AND, CORRESPONDINGLY, ABOUT 65 TO 55 MOL PERCENT OF 2,5-DIHYDROXYBENZOIC ACID.
Claim 2
Dependent Claim
82 words
AN ALKYD RESIN COMPOSITION COMPRISING THE INTERCONDENSATION PRODUCT OF ABOUT 3.1 TO ABOUT 3.4 MOL EQUIVALENTS OF A POLYOL CONTAINING AN AVERAGE OF FROM ABOUT 2.5 TO 4.5 HYDROXYL GROUPS PER MOLECULE WITH FROM ABOUT 2 TO 2.5 MOL EQUIVALENTS OF A POLYCARBOXYLIC ACID AND, CORRESPONDINGLY, FROM ABOUT 1 TO ABOUT 0.5 MOL EQUIVALENT OF A MODIFIER COMPONENT CONSISTING OF ABOUT 35 TO 45 MOL PERCENT OF AN UNSATURATED FATTY ACID AND, CORRESPONDINGLY, ABOUT 65 TO 55 MOL PERCENT OF 2,5-DIHYDROXYBENZOIC ACID.
References Cited (Backward Citations)
US2197855A
Cited
US2618616A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |