US3284394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous dispersion of a copolymer of methylmethacrylate and beta-hydroxyethylmethacrylate
Assignee: Wyeth Holdings LLC
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Filing: 1965-03-24
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Granted: 1966-11-08
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Expires: 1985-03-24
Abstract
No abstract record available.
Inventors
- 👤 Suen Tzeng Jiueq
- 👤 William C Meisenhelder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:40
CPC Classifications
D; D21; D21H; D21H27/00; D21H27/18; D21H27/22; D21H27/26; D21H27/28; C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3467; C08K5/3477; C08K5/3492; C08K5/34922; C08L; C08L61/00; C08L61/20; C08L61/26; C08L61/28; C09; C09D; C09D133/00; C09D133/04; C09D133/06; C09D133/10; C09D133/12
Claims Analysis
Total Claims: 0
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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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |