US3639362A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adamantane acrylate and methacrylate esters and polymers thereof
Assignee: Sunoco Inc
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Filing: 1969-03-13
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Granted: 1972-02-01
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Expires: 1989-03-13
Abstract
Abstract NOVEL COPOLYMERS HAVING LOW MOLD SHRINKAGE PROPERTIES ARE PREPARED FROM ADAMANTANE ACRYLATE AND METHACRYLATES OF THE STRUCTURE 1-R3,3-(CH2=C(-R)-COO-),5-R1,7-R2-ADAMANTANE WHERE R IS HYDROGEN OR METHYL AND R1, R2, AND R3 ARE PREFERABLY ALKYL OR CYCLOALKYL RADICALS HAVING 1-20 CARBON ATOMS AND A SECOND POLYMERIZABLE UNSATURATED MONOMER SUCH AS METHYL METHACRYLATE, STYRENE, ACRYLONITRILE, AND VINYL CHLORIDE.
Inventors
- 👤 Irl N Duling
- 👤 Abraham Schneider
- 👤 Robert E Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:45
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/10; C08F220/12; C08F220/16; C08F220/18; C08F220/1812
Claims Analysis
Total Claims: 0
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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) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |