Patent US3547634A successfully refreshed from Google Patents.
US3547634A
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Light sensitive composition containing a heterocyclic photoactivator having an -n+=c- group in the heterocyclic ring alkyl thereof and the photographic use thereof
Assignee: Keuffel and Esser Co
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Filing: 1966-10-26
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Granted: 1970-12-15
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Expires: 1986-10-26
Abstract
No abstract record available.
Inventors
- 👤 Haruo Hori
- 👤 Shoichiro Hoshino
- 👤 Hiroshi Tokura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:36
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/72; G03C1/73
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
LIGHT-SENSITIVE REPRODUCTION MATERIAL COMPRISING A SUPPORT AND A LIGHT-SENSITIVE COMPOSITION COMPRISING (A) A PHOTOACTIVATABLE COMPOUND OF THE GENERAL FORMULA:
Claim 2
Dependent Claim
19 words
LIGHT-SENSITIVE REPRODUCTION MATERIAL COMPRISING A SUPPORT AND A LIGHT-SENSITIVE COMPOSITION COMPRISING (A) A PHOTOACTIVATABLE COMPOUND OF THE GENERAL FORMULA:
References Cited (Backward Citations)
US2811510A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |