US3826784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel reactive cinnamate polymers
Assignee: Fujifilm Holdings Corp
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Filing: 1973-07-06
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Granted: 1974-07-30
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Expires: 1993-07-06
Abstract
Abstract REACTTIVE POLYMERS HAVING MONOMER UNITS REPRESENTED BY THE FOLLOWING GENERAL FORMULA: -CH2-C(-R1)(-PHENYLENE-CH2-O-CO-C(-R2)=CH-PHENYLENE-R3)- WHEREIN R1 REPRESENTS A HYDROGEN ATOM OR AN ALKYL GROUP HAVING NOT MORE THAN 2 CARBON ATOMS, R2 REPRESENTS A HYDROGEN ATOM, CYANO GROUP, OR A CARBAMOYL GROUP, AND R3 REPRESENTS A HYDROGEN ATOM, A HALOGEN ATOM, A NITRO GROUP, AN ACYL GROUP OR AN ALKOXY, E.G. METHOXY GROUP.
Inventors
- 👤 M Satomura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:18
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; G03F7/0388; C; C08; C08F; C08F2/00
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) | 1977-07-29 | 1978-01-28 | 1978-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-29 | 1982-01-28 | 1982-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-29 | 1986-01-28 | 1986-07-30 | $7700.00 | Window Closed / Lapsed |