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Patent US3672922A successfully refreshed from Google Patents.
US3672922A
Expired / Lapsed
US
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Benzyl starch emulsion coating compositions
Assignee: Penick & Ford Ltd
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Filing: 1970-01-26
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Granted: 1972-06-27
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Expires: 1990-01-26
Abstract
Abstract AN OIL-IN-WATER EMULSION COATING COMPSITION FOR IMPARTING BRIGHTNESS AND/OR OPACITY TO PUBLICATION PAPER, BOXBOARD AND THE LIKE UTILIZES A COMBINATION BINDER AND EMULSIFIER IN THE WATER PHASE, CONSISTING ESSENTIALLY OF DISPERSED PARTICLES OF BENZL STARCH CONTAINING FROM 2 TO 20% OF EITHER-LINKED BENZYL GROUPS. PERFERABLY, THE STARCH CONTAINS FROM 5 TO 12% BENZYL GROUPS. THE COMPOSITION CAN BE UTILIZED AS A "BUBBLE" COATING.
Inventors
- 👤 Robert E Brouilliard
- 👤 Leonard J Coughlin
- 👤 Vernon L Winfrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:00
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/54
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) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |