US3344741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Receiving sheet for use as a master or copy in the dtr process
Assignee: AB Dick Co
•
Filing: 1965-09-20
•
Granted: 1967-10-03
•
Expires: 1985-09-20
Abstract
No abstract record available.
Inventors
- 👤 Ruth E Ormsbee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:41
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/06; G03F7/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A RECEIVING SHEET FOR IMAGING BY A DIFFUSION TRANSFER REVERSAL PROCESS COMPRISING A PAPER BASE SHEET AND A COATING ON THE SURFACE OF THE PAPER BASE SHEET CONSISTING ESSENTIALLY OF THE COMBINATION OF COLLOIDAL SILICA, A NUCLEATING AGENT FOR REDUCTION OF A SOLUBLE SILVER HALIDE COMPLEX TO AN OLEOPHILIC INK RECEPTIVE IMAGING MATERIAL AND PRESENT IN AN AMOUNT WITHIN THE RANGE OF 0.1 TO 0.5 PART BY WEIGHT PER 9 PARTS BY WEIGHT OF COLLOIDAL SILICA AND IN WHICH THE NUCLEATING AGENT COMPRISES THE COMBINATION OF SODIUM SULFIDE AND SILVER NITRATE PRESENT IN THE RATIO OF 1 PART BY WEIGHT OF SODIUM SULFIDE TO 1 TO 1.5 PARTS BY WEIGHT OF SILVER NITRATE, AND A RESINOUS BINDERR SELECTED FROM THE GROUP CONSISTING OF A VINYLIDENE CHLOFIDE POLYMER AND AN ACRYLATE POLYMER AND IN WHICH THE COATING IS A WATER INSOLUBLE COATING WHICH IS WATER RECEPTIVE, INK REPELLENT, HYDROPHILIC AND LITHOGRAPHIC.
Claim 2
Dependent Claim
150 words
A RECEIVING SHEET FOR IMAGING BY A DIFFUSION TRANSFER REVERSAL PROCESS COMPRISING A PAPER BASE SHEET AND A COATING ON THE SURFACE OF THE PAPER BASE SHEET CONSISTING ESSENTIALLY OF THE COMBINATION OF COLLOIDAL SILICA, A NUCLEATING AGENT FOR REDUCTION OF A SOLUBLE SILVER HALIDE COMPLEX TO AN OLEOPHILIC INK RECEPTIVE IMAGING MATERIAL AND PRESENT IN AN AMOUNT WITHIN THE RANGE OF 0.1 TO 0.5 PART BY WEIGHT PER 9 PARTS BY WEIGHT OF COLLOIDAL SILICA AND IN WHICH THE NUCLEATING AGENT COMPRISES THE COMBINATION OF SODIUM SULFIDE AND SILVER NITRATE PRESENT IN THE RATIO OF 1 PART BY WEIGHT OF SODIUM SULFIDE TO 1 TO 1.5 PARTS BY WEIGHT OF SILVER NITRATE, AND A RESINOUS BINDERR SELECTED FROM THE GROUP CONSISTING OF A VINYLIDENE CHLOFIDE POLYMER AND AN ACRYLATE POLYMER AND IN WHICH THE COATING IS A WATER INSOLUBLE COATING WHICH IS WATER RECEPTIVE, INK REPELLENT, HYDROPHILIC AND LITHOGRAPHIC.
References Cited (Backward Citations)
US2698237A
Cited
US3220837A
Cited
US3157117A
Cited
US3161508A
Cited
US3062648A
Cited
US3247793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-02 | 1971-04-03 | 1971-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-02 | 1975-04-03 | 1975-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-02 | 1979-04-03 | 1979-10-03 | $7700.00 | Window Closed / Lapsed |