Patent US3776867A successfully refreshed from Google Patents.
US3776867A
Expired / Lapsed
US
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Solventless non-polluting vehicles for heat-set inks
Assignee: RICHARDSON INK CO
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Filing: 1970-10-05
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Granted: 1973-12-04
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Expires: 1990-10-05
Abstract
Abstract VEHICLES FOR USE IN COMMERICAL HEAT-SET INKS COMPRISING RAW CASTOR OIL AND HYDROYLATED FATTY ACIDS OF CASTOR OIL WHICH IN THE PRESENCE OF MODIFIED RESINS, A CROSSLINKING AGENT AND AN ACID CATALYST CURE INSTANTLY WHEN EXPOSED TO HEAT TO FORM HARD COATINGS ON PAPER OR PAPERLIKE SUBSTANCES. THE INK VEHICLES DO NOT EMPLOY ANY HYDROCARBON SOLVENT ADDITIVES REQUIRING EVAPORATION IN THE DRYING PROCESS, AND THEREFORE, NO POLLUTING VAPORS ARE PRESENT TO CONTAMINATE NORMAL ATMOSPHERIC RESOURCES.
Inventors
- 👤 H Perry
- 👤 M Swinford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:21
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D167/00; C09D167/08
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) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |