Patent US3574642A successfully refreshed from Google Patents.
US3574642A
Expired / Lapsed
US
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Package for and method of packaging meats
Assignee: Primerica Inc
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Filing: 1969-05-15
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Granted: 1971-04-13
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Expires: 1989-05-15
Abstract
Abstract A PACKAGE FOR AND A METHOD OF PACKAGING MEATS ARE DISCLOSED WHEREIN THE PACKAGE INCLUDES AN INNER OXYGEN-PERMEABLE MEMBER WHICH MAY BE EITHER GAS FLUSHED OR EVACUATED AND AN OUTER OXYGEN-IMPERMEABLE MEMBER WHICH MAY ALSO BE GAS FLUSHED OR EVACUATED. THE PACKAGE PRESERVES THE FRESHNESS OF THE MEAT UNTIL THE MEAT IS READY TO BE MARKETED TO THE CONSUMER. FOR MARKETING, THE OUTER WRAPPER IS REMOVED AND THE INNER PACKAGE IS DISPLAYED TO THE CONSUMER. BEING OXYGEN PERMEABLE, THE INNER WRAPPER ADMITS OXYGEN TO THE INTERIOR OF THE PACKAGE CAUSING THE FRESH MEAT PRODUCT TO CHANGE TO A BRIGHT RED COLOR WHICH THE CONSUMER ASSOCIATED WITH FRESHNESS.
Inventors
- 👤 Karl Frederick Weinke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:27
CPC Classifications
B; B65; B65B; B65B31/00; B65B31/02; B65B31/024; B65D; B65D75/00; B65D75/38; Y; Y10; Y10S; Y10S206/00; Y10S206/807; Y10S493/00; Y10S493/916; Y10S493/931
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) | 1974-04-12 | 1974-10-12 | 1975-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-12 | 1978-10-12 | 1979-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-12 | 1982-10-12 | 1983-04-13 | $7700.00 | Window Closed / Lapsed |