US3764353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treating liquid for electrophotographic offset master
Assignee: Ricoh Co Ltd
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Filing: 1970-06-01
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Granted: 1973-10-09
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Expires: 1990-06-01
Abstract
Abstract A TREATING LIQUID TO BE EMPLOYED FOR AN ELECTROPHOTOGRAPHIC OFFSET MASTER, WHICH COMPRISES FERROCYANIDE OR FERRICYANIDE, INORGANIC PHOSPHATE, ORGANIC ACID OR INORGANIC ACID, POLYVALENT METALLIC SALT AND CHELATING AGENT.
Inventors
- 👤 S Shimizu
- 👤 R Shimizu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:12
CPC Classifications
B; B41; B41N; B41N3/00; B41N3/08
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) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |