US2940937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorescent printing ink
Assignee: Wyeth Holdings LLC
•
Filing: 1954-04-29
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Granted: 1960-06-14
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Expires: 1974-04-29
Abstract
No abstract record available.
Inventors
- 👤 Samuel J O'brien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:23
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D5/00; C09D5/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A FLUORESCENT PRINTING INK ADAPTED FOR USE IN PRESS PRINTING OPERATIONS WHICH COMPRISES, A PRESS PRINTING VEHICLE SELECTED FROM THE GROUP CONSISTING OF LITHOGRAPHIC VARNISH, AND MALEIC-FUMARIC-ROSIN ADDUCTS, METAL ROSINATES AND SHELLAC DISSOLVED IN SOLVENTS, A PIGMENT DISPERSED THEREIN COMPRISING (1) A SINGLE PHASE RESINOUS SUBSTRATE PREPARED BY (A) FORMING A MIXTURE COMPRISING A POWDERED POLYACRYLONITRILE FORMED BY EMULSION POLYMERIZATION OF ACRYLONITRILE AND A RESINOUS FORMING MONOMER SELECTED FROM THE GROUP CONSISTING OF UREA FORMALDEHYDE AND MELAMINE FORMALDEHYDE AND (B) SUBJECTING SAID MIXTURE TO CONDITIONS AT WHICH SAID MONOMER IS POLYMERIZED WHEREBY SAID SINGLE PHASE RESINOUS SUBSTRATE IS OBTAINED IN POWDER FORM, SAID MONOMER BEING IN AMOUNT OF FROM ABOUT 1.5-85% BY WEIGHT OF THE POLYACRYLONITRILE, AND (2) A FLUORESCENT ORGANIC DYE SOLVATED IN SAID SUBSTRATE, THE AMOUNT OF DYE BEING NOT MORE THAN ABOUT 4% BY WEIGHT OF THE SUBSTRATE.
Claim 2
Dependent Claim
141 words
A FLUORESCENT PRINTING INK ADAPTED FOR USE IN PRESS PRINTING OPERATIONS WHICH COMPRISES, A PRESS PRINTING VEHICLE SELECTED FROM THE GROUP CONSISTING OF LITHOGRAPHIC VARNISH, AND MALEIC-FUMARIC-ROSIN ADDUCTS, METAL ROSINATES AND SHELLAC DISSOLVED IN SOLVENTS, A PIGMENT DISPERSED THEREIN COMPRISING (1) A SINGLE PHASE RESINOUS SUBSTRATE PREPARED BY (A) FORMING A MIXTURE COMPRISING A POWDERED POLYACRYLONITRILE FORMED BY EMULSION POLYMERIZATION OF ACRYLONITRILE AND A RESINOUS FORMING MONOMER SELECTED FROM THE GROUP CONSISTING OF UREA FORMALDEHYDE AND MELAMINE FORMALDEHYDE AND (B) SUBJECTING SAID MIXTURE TO CONDITIONS AT WHICH SAID MONOMER IS POLYMERIZED WHEREBY SAID SINGLE PHASE RESINOUS SUBSTRATE IS OBTAINED IN POWDER FORM, SAID MONOMER BEING IN AMOUNT OF FROM ABOUT 1.5-85% BY WEIGHT OF THE POLYACRYLONITRILE, AND (2) A FLUORESCENT ORGANIC DYE SOLVATED IN SAID SUBSTRATE, THE AMOUNT OF DYE BEING NOT MORE THAN ABOUT 4% BY WEIGHT OF THE SUBSTRATE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |