Patent US3561982A successfully refreshed from Google Patents.
US3561982A
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Method for packing food in plastic containers
Assignee: Dubuque Packing Co
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Filing: 1968-02-06
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Granted: 1971-02-09
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Expires: 1988-02-06
Abstract
Abstract A PROCESS OF PLACING FOOD PRODUCTS IN RIGID PLASTIC CONTAINER AND SEALING THE CONTAINER TO COMPLETELY ENCLOSE THE FOOD PRODUCT. AIR IS REMOVED FROM THE CONTAINER BEFORE SEALING BY DRAWING A VACUUM OR THE AIR MAY BE DISPLACED BY ANOTHER GAS. THE SEALED CONTAINER IS HEAT PROCESSED TO RENDER THE ENCLOSED FOOD PRODUCT COOKED AND SEMI-PERISHABLE OR STERILE.
Inventors
- 👤 Thomas F Oeth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:13
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/34; B29C65/36; B29C65/3604; B29C65/362; B29C66/00; B29C66/001; B29C66/01; B29C66/05; B29C66/10; B29C66/12; B29C66/124; B29C66/1244; B29C66/12441; B29C66/1246; B29C66/12469; B29C66/302; B29C66/3022; B29C66/30223; B29C66/50; B29C66/51; B29C66/54; B29C66/543; B29C66/5432; B29C66/80; B29C66/81; B65; B65B; B65B51/00; B65B51/10; B65B51/22; B65B51/227; B29C65/3672; B29C65/3676; B29C66/83; B29C66/832; B29C66/8322; Y; Y10; Y10S; Y10S220/00; Y10S220/916
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |