US3749699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light-sensitive mixed esters of polyvinyl alcohol
Assignee: Konica Minolta Graphic Imaging USA Inc
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Filing: 1971-01-07
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Granted: 1973-07-31
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Expires: 1991-01-07
Abstract
Abstract LIGHT-SENSITIVE FILM FORMING POLYMERS ARE DISCLOSED WHICH COMPRISE RECURRING UNITS OF BENZOATE- AND FUROATE-ESTERIFIED POLYVINYL ALCOHOL AS WELL AS THEIR UTILIZATION AS PHOTOGRAPHIC RESIST MATERIALS AND PRINTING PLATES FOR LITHOGRAPHY.
Inventors
- 👤 J Apellaniz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:45
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; G03F7/0388; C; C08; C08F; C08F8/00; C08F8/14; C08F2810/00; C08F2810/30
Claims Analysis
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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) | 1976-07-30 | 1977-01-29 | 1977-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-30 | 1981-01-29 | 1981-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-30 | 1985-01-29 | 1985-07-31 | $7700.00 | Window Closed / Lapsed |