US2614997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl esters of chemically stabilized rosins and polymers thereof
Assignee: Hercules Powder Co
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Filing: 1950-09-16
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Granted: 1952-10-21
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Expires: 1970-09-16
Abstract
No abstract record available.
Inventors
- 👤 Jr John C Robinson
- 👤 Walter S Ropp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:39
CPC Classifications
C; C09; C09F; C09F1/00; C09F1/04; C08; C08F; C08F18/00; C08F18/02; C08F18/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
A VINYL ESTER OF A CHEMICALLY STABILIZED ROSIN ACID MATERIAL, SAID CHEMICALLY STABILIZED ROSIN ACID MATERIAL BEING SELECTED FROM THE GROUP CONSISTING OF HYDROGENATED ROSINS, DEHYDROGENATED ROSINS, HYDROGENATED ROSIN ACID FRACTIONS, AND DEHYDROGENATED ROSIN ACID FRACTIONS, SAID HYDROGENATED ROSIN ACID MATERIALS BEING AT LEAST 40% SATURATED WITH HYDROGEN AND HAVING A CONTENT OF ABIETIC-TYPE RESIN ACIDS OF NOT OVER 10%, SAID DEHYDROGENATED ROSIN ACID MATERIALS HAVING A DEHYDROABIETIC ACID CONTENT OF AT LEAST 40% AND HAVING AN ABIETIC-TYPE RESIN ACID CONTENT OF NOT OVER 10%, SAID ROSIN ACID FRACTIONS BEING THE FRACTIONS OBTAINED BY REMOVING THE NEUTRAL BODIES FROM ROSINS.
Claim 2
Dependent Claim
100 words
A VINYL ESTER OF A CHEMICALLY STABILIZED ROSIN ACID MATERIAL, SAID CHEMICALLY STABILIZED ROSIN ACID MATERIAL BEING SELECTED FROM THE GROUP CONSISTING OF HYDROGENATED ROSINS, DEHYDROGENATED ROSINS, HYDROGENATED ROSIN ACID FRACTIONS, AND DEHYDROGENATED ROSIN ACID FRACTIONS, SAID HYDROGENATED ROSIN ACID MATERIALS BEING AT LEAST 40% SATURATED WITH HYDROGEN AND HAVING A CONTENT OF ABIETIC-TYPE RESIN ACIDS OF NOT OVER 10%, SAID DEHYDROGENATED ROSIN ACID MATERIALS HAVING A DEHYDROABIETIC ACID CONTENT OF AT LEAST 40% AND HAVING AN ABIETIC-TYPE RESIN ACID CONTENT OF NOT OVER 10%, SAID ROSIN ACID FRACTIONS BEING THE FRACTIONS OBTAINED BY REMOVING THE NEUTRAL BODIES FROM ROSINS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-21 | 1956-04-21 | 1956-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-21 | 1960-04-21 | 1960-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-21 | 1964-04-21 | 1964-10-21 | $7700.00 | Window Closed / Lapsed |