Patent US3353972A successfully refreshed from Google Patents.
US3353972A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexographic inks containing soluble dyes
Assignee: Interchemical Corp
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Filing: 1964-09-21
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Granted: 1967-11-21
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Expires: 1984-09-21
Abstract
No abstract record available.
Inventors
- 👤 Sinclair Gabriel John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:44
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/03; C09D11/037; C09B; C09B69/00; C09B69/02; C09B69/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
A FLEXOGRAPHIC PRINTING INK CONSISTING ESSENTIALLY OF A SOLUTION OF FROM 15 TO 30% OF THE WEIGHT OF THE INK OF AN ALCOHOL-SOLUBLE RESIN, OF FROM 8 TO 11% OF THE WEIGHT OF THE INK OF A DYE SELECTED FROM THE GROUP CONSISTING OF COLORED QUATERNARY AMMONIUM TRIPHENYLMETHANE SALTS AND COLORED QUATERNARY AMMONIUM DIPHENYYLMETHANE SALTS AND FROM 10 TO 20% OF THE WEIGHT OF THE INK OF 4,4-BIS(P-HYDROXPHENYL) PENTANOIC ACID IN A PREDOMINANTLY LOWER ALKANOL SOLVENT, SAID LOWER ALKANOL BEING SELECTED FROM THE GROUP CONSISTING OF ALKANOLS HAVING FROM 1 TO 3 CARBON ATOMS.
Claim 2
Dependent Claim
94 words
A FLEXOGRAPHIC PRINTING INK CONSISTING ESSENTIALLY OF A SOLUTION OF FROM 15 TO 30% OF THE WEIGHT OF THE INK OF AN ALCOHOL-SOLUBLE RESIN, OF FROM 8 TO 11% OF THE WEIGHT OF THE INK OF A DYE SELECTED FROM THE GROUP CONSISTING OF COLORED QUATERNARY AMMONIUM TRIPHENYLMETHANE SALTS AND COLORED QUATERNARY AMMONIUM DIPHENYYLMETHANE SALTS AND FROM 10 TO 20% OF THE WEIGHT OF THE INK OF 4,4-BIS(P-HYDROXPHENYL) PENTANOIC ACID IN A PREDOMINANTLY LOWER ALKANOL SOLVENT, SAID LOWER ALKANOL BEING SELECTED FROM THE GROUP CONSISTING OF ALKANOLS HAVING FROM 1 TO 3 CARBON ATOMS.
References Cited (Backward Citations)
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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) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |