US3509110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl aryl monomer-half ester copolymers by suspension polymerization
Assignee: Atlantic Richfield Co
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Filing: 1968-04-03
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Granted: 1970-04-28
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Expires: 1988-04-03
Abstract
No abstract record available.
Inventors
- 👤 Adolph V Di Giulio
- 👤 David R Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:01
CPC Classifications
C; C08; C08F; C08F8/00; C08F2800/00; C08F2800/10; C08F2800/20; C08F2810/00; C08F2810/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA522908A
Cited
US3437643A
Cited
US3342787A
Cited
US3355438A
Cited
US3395131A
Cited
US3458484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-04-27 | 1973-10-27 | 1974-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-27 | 1977-10-27 | 1978-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-27 | 1981-10-27 | 1982-04-28 | $7700.00 | Window Closed / Lapsed |