US2843561A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compositions of interpolymerized vinyl aromatic hydrocarbons, acrylic acid esters and rubbery butadiene-styrene copolymers and method of making same
Assignee: Dow Chemical Co
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Filing: 1955-03-29
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Granted: 1958-07-15
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Expires: 1975-03-29
Abstract
No abstract record available.
Inventors
- 👤 Francis L Ingley
- 👤 Moldovan Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:23
CPC Classifications
C; C08; C08F; C08F279/00; C08F279/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
A RESINOUS TRANSPARENT POLYMERIC COMPOSITION OF MATTER WHICH COMPRISES AN INTERPOLYMERIZED SOLUTION OF FROM 80 TO 95 PERCENT BY WEIGHT OF A MIXTURE OF MONOMERS CONSISTING OF FROM 50 TO 60 PERCENT BY WEIGHT OF AT LEAST ONE MONOVINYL AROMATIC HYDROCARBON OF THE BENZENE SERIES AND FROM 50 TO 40 PERCENT OF AT LEAST ONE ESTER OF ACRYLIC ACID HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
63 words
A RESINOUS TRANSPARENT POLYMERIC COMPOSITION OF MATTER WHICH COMPRISES AN INTERPOLYMERIZED SOLUTION OF FROM 80 TO 95 PERCENT BY WEIGHT OF A MIXTURE OF MONOMERS CONSISTING OF FROM 50 TO 60 PERCENT BY WEIGHT OF AT LEAST ONE MONOVINYL AROMATIC HYDROCARBON OF THE BENZENE SERIES AND FROM 50 TO 40 PERCENT OF AT LEAST ONE ESTER OF ACRYLIC ACID HAVING THE GENERAL FORMULA:
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) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |