Patent US4519841A successfully refreshed from Google Patents.
US4519841A
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Offset printing ink
Assignee: NEWSPAPER ASSOCIATION OF AMERICA Inc
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Filing: 1983-11-30
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Granted: 1985-05-28
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Expires: 2003-11-30
Abstract
Abstract A non-petroleum base newspaper offset printing ink comprising a blend of Gilsonite (uintaite) flakes and tall oil fatty acid together with carbon black pigment. The proportions of the Gilsonite and the tall oil fatty acid may be varied, as viscosity requirements change due to differences in press speeds, newsprint characteristics, and the like. The ink thus has readily adjustable viscosity, together with an enhanced flow and penetration characteristics, while being extremely economical to manufacture.
Inventors
- 👤 John T. Moynihan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:15
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/06
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
34 words
An offset printing ink comprising: a. Carbon black in the range 10% to 27.8%, b. Gilsonite in the range 17.6% to 23.5%, and c. Tall oil fatty acid in the range 50.1% to 54.9%.
Claim 2
Dependent Claim
34 words
An offset printing ink comprising: a. Carbon black in the range 10% to 27.8%, b. Gilsonite in the range 17.6% to 23.5%, and c. Tall oil fatty acid in the range 50.1% to 54.9%.
Claim 3
Dependent Claim
14 words
An offset printing ink as in claim 1, including black ink toner approximately 2.2%.
Claim 4
Dependent Claim
24 words
An offset printing ink comprising: a. Carbon black 19.3%, b. Gilsonite 21.6%, c. Tall oil fatty acid 50.4%, and d. a montmorillonite clay gellant-6.6%.
Claim 5
Dependent Claim
24 words
An offset printing ink comprising: a. Carbon black 19.3%, b. Gilsonite 21.6%, c. Tall oil fatty acid 50.4%, and d. a montmorillonite clay gellant-6.6%.
Claim 6
Dependent Claim
24 words
An offset printing ink comprising: a. Carbon black 27.8%, b. Gilsonite 19.9%, c. tall oil fatty acid 50.1%, and d. black ink toner 2.2%.
Claim 7
Dependent Claim
24 words
An offset printing ink comprising: a. Carbon black 27.8%, b. Gilsonite 19.9%, c. tall oil fatty acid 50.1%, and d. black ink toner 2.2%.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-05-27 | 1988-11-26 | 1989-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-27 | 1992-11-26 | 1993-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-27 | 1996-11-26 | 1997-05-28 | $7700.00 | Window Closed / Lapsed |