US2843497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wax coatings containing synergistic antioxidants
Assignee: Eastman Kodak Co
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Filing: 1955-02-23
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Granted: 1958-07-15
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Expires: 1975-02-23
Abstract
No abstract record available.
Inventors
- 👤 Benjamin N Stuckey
- 👤 William M Gearhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:39
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A STABLE CONCENTRATED AQUEOUS EMULSION ADAPTABLE FOR THE COATING OF FLEXIBLE SHEET PACAKAGING BASE MATERIALS CONSISTING ESSENTIALLY OF A DISPERSION IN ABOUT 40 PARTS BY WEIGHT OF WATER OF ABOUT 60 PARTS BY WEIGHT OF A SOLUTION CONSISTING ESSENTIALLY OF (A) ABOUT 20 PARTS OF VOLUME OF DI-ISOBUTYL ADIPATE AS A SOLVENT, (B) ABOUT 25 PARTS BY VOLUME OF GLYCERYL MONOSTEARATE AS AN EMULISIFER, AND (C) ABOUT 10 PARTS BY VOLUME OF A SYNERGISTIC ANTIOXIDANT COMBINATION OF FROM 1 TO 6 PARTS BY WEIGHT OF TERTIARY BUTY-P-HYDROXYANIOSLE AND FROM 9 TO 4 PARTS BY WEIGHT OF 3,5-DITERTIARY BUTYL-P-HYDROXYTOLUENE.
Claim 2
Dependent Claim
98 words
A STABLE CONCENTRATED AQUEOUS EMULSION ADAPTABLE FOR THE COATING OF FLEXIBLE SHEET PACAKAGING BASE MATERIALS CONSISTING ESSENTIALLY OF A DISPERSION IN ABOUT 40 PARTS BY WEIGHT OF WATER OF ABOUT 60 PARTS BY WEIGHT OF A SOLUTION CONSISTING ESSENTIALLY OF (A) ABOUT 20 PARTS OF VOLUME OF DI-ISOBUTYL ADIPATE AS A SOLVENT, (B) ABOUT 25 PARTS BY VOLUME OF GLYCERYL MONOSTEARATE AS AN EMULISIFER, AND (C) ABOUT 10 PARTS BY VOLUME OF A SYNERGISTIC ANTIOXIDANT COMBINATION OF FROM 1 TO 6 PARTS BY WEIGHT OF TERTIARY BUTY-P-HYDROXYANIOSLE AND FROM 9 TO 4 PARTS BY WEIGHT OF 3,5-DITERTIARY BUTYL-P-HYDROXYTOLUENE.
References Cited (Backward Citations)
US691952A
Cited
GB621923A
Cited
GB658168A
Cited
US2658835A
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GB685168A
Cited
US2658004A
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US2704746A
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US2715073A
Cited
US2628172A
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US2755193A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |