Patent US3069373A successfully refreshed from Google Patents.
US3069373A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modification of polyepoxide conversion systems with petroleum resin-phenol addition products
Assignee: Individual
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Filing: 1960-03-21
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Granted: 1962-12-18
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Expires: 1980-03-21
Abstract
No abstract record available.
Inventors
- 👤 Greenlee Sylvan Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:29
CPC Classifications
C; C08; C08G; C08G8/00; C08G8/28; C08G8/34; C08L; C08L63/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A HYDROXYPHENYLATED PETROLEUM RESIN PREPARED BY REACTING A PHENOL SELECTED FROM THE GROUP CONSISTING OF MONOHYDRIC PHENOLS AND DIHYDRIC PHENOLS HAVING AT LEAST ONE OF THE ORTHO OR PARA POSITION CARBON ATOMS UNSUBSTITUTED ON AN AROMATIC NUCLEUS TO WHICH A PHENOLIC HYDROXYL GROUP IS ATTACHED, WITH AN UNSATURED PETROLEUM RESIN HAVING AN IODINE VALUE OF FROM ABOUT 100 TO 500, AN AVERAGE MOLECULAR WEIGHT OF FROM ABOUT 250 TO ABOUT 2500 AND CONTAINING AN AVERAGE OF AT LEAST TWO ABOUT BONDS PER MOLECULE, SAID MATERIAL CONTAINING AT LEAST ABOUT 2.5% PHENOLIC HYDROXYL BY WEIGHT, AND AVERAGE OF AT LEAST 0.75 PHENOLIC HYDROXYL GROUP PER MOLECULE AND A TOTAL PHENOL ADDITION OF AT LEAST ABOUT 8% BY WEIGHT.
Claim 2
Dependent Claim
117 words
A HYDROXYPHENYLATED PETROLEUM RESIN PREPARED BY REACTING A PHENOL SELECTED FROM THE GROUP CONSISTING OF MONOHYDRIC PHENOLS AND DIHYDRIC PHENOLS HAVING AT LEAST ONE OF THE ORTHO OR PARA POSITION CARBON ATOMS UNSUBSTITUTED ON AN AROMATIC NUCLEUS TO WHICH A PHENOLIC HYDROXYL GROUP IS ATTACHED, WITH AN UNSATURED PETROLEUM RESIN HAVING AN IODINE VALUE OF FROM ABOUT 100 TO 500, AN AVERAGE MOLECULAR WEIGHT OF FROM ABOUT 250 TO ABOUT 2500 AND CONTAINING AN AVERAGE OF AT LEAST TWO ABOUT BONDS PER MOLECULE, SAID MATERIAL CONTAINING AT LEAST ABOUT 2.5% PHENOLIC HYDROXYL BY WEIGHT, AND AVERAGE OF AT LEAST 0.75 PHENOLIC HYDROXYL GROUP PER MOLECULE AND A TOTAL PHENOL ADDITION OF AT LEAST ABOUT 8% BY WEIGHT.
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) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |