US3645757A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Food packaging method employing release agent coated packaging material
Assignee: Kraft Inc
•
Filing: 1970-05-28
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Granted: 1972-02-29
•
Expires: 1990-05-28
Abstract
Abstract An improved package for moisture-containing food products and a method for providing improved release properties for such food products is provided. The release properties are provided by a thin film or layer of a suitable readily hydrated hydrocolloid. Suitable hydrocolloids may be selected from pregelatinized starches, modified cellulose materials or mixtures thereof.
Inventors
- 👤 Arthur L Gordon
- 👤 Leonard A Warwick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:06
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/24; A; A23; A23B; A23B7/00; A23B7/16; A23P; A23P20/00; A23P20/10; A23P20/12; A23V; A23V2200/00; A23V2200/20; A23V2200/22; Y; Y10; Y10S; Y10S426/00; Y10S426/811
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
25 words
The method of claim 1 wherein the readily hydrated hydrocolloid is selected from pregelatinized starch, nonionic water soluble cellulose ethers, and mixtures of the same.
Claim 2
Dependent Claim
12 words
The method of claim 1 wherein said moisture-containing food product is cheese.
Claim 3
Dependent Claim
48 words
A method in accordance with claim 1 wherein said dry thin layer of a readily hydrated hydrocolloid is provided by mixing said hydrocolloid with an alcohol to provide a dispersion, spraying said dispersion onto the surface of said packaging material and drying said dispersion to remove said alcohol.
Claim 4
Dependent Claim
35 words
A method in accordance with claim 1 wherein said dry thin layer of a readily hydrated hydrocolloid is provided by dusting a substantially dry readily hydrated hydrocolloid powder onto the surface of the packaging material.
References Cited (Backward Citations)
US2235798A
Cited
US2746877A
Cited
US2836512A
Cited
US2979410A
Cited
US3144298A
Cited
US3335017A
Cited
US3340089A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-02-28 | 1975-08-30 | 1976-02-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-28 | 1979-08-30 | 1980-02-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-28 | 1983-08-30 | 1984-02-29 | $7700.00 | Window Closed / Lapsed |