US3423481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Difficultly dyeable polymers containing copolymers of ethylenically unsaturated monomers containing glycidyl groups
Assignee: Tokuyama Corp
•
Filing: 1966-02-07
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Granted: 1969-01-21
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Expires: 1986-02-07
Abstract
No abstract record available.
Inventors
- 👤 Yukio Mizutani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:40
CPC Classifications
C; C08; C08L; C08L33/00; C08L33/04; C08L33/06; C08L33/10; C08L33/12; C08K; C08K5/00; C08K5/04; C08K5/13; C08L101/00; C08L23/00; C08L23/02; C08L23/10; C08L25/00; C08L25/02; C08L25/04; C08L25/08; C08L25/12; C08L57/00; C08L67/00; C08L67/02; C08L2205/00; C08L2205/14; C08L2205/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3301919A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |