US3767415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photosensitive composition comprising light-sensitive polymer
Assignee: National Institute of Advanced Industrial Science and Technology
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Filing: 1971-11-11
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Granted: 1973-10-23
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Expires: 1991-11-11
Abstract
Abstract This invention is concerned with a photosensitive composition having, as a pendant, Alpha -phenyl cinnamylidene acetyl group of the generic formula:
Inventors
- 👤 H Tanaka
- 👤 M Tsuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:26
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/14; G; G03; G03F; G03F7/00; G03F7/004; G03F7/038; G03F7/0388; C08F2810/00; C08F2810/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3257664A
Cited
US3635720A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |