US4721624A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for removing harmful residues from food during cooking
Assignee: Fibeg Beteiligungsgesellschaft Mgh
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Filing: 1985-10-25
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Granted: 1988-01-26
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Expires: 2005-10-25
Abstract
Abstract The invention relates to a cooking utensil, for example a cooking pot, wherein the latter has an ion exchanger and/or absorber and/or adsorber and/or filter and/or other device for the extraction of residues of pesticides, herbicides, synthetic fertilizers, hormones and the like from the products to be cooked and prepared, i.e. from the foodstuffs to be prepared, their preparation liquid and/or their vapors during the cooking process. The said harmful substances are to be extracted in this way from the products to be cooked.
Inventors
- 👤 Franz W. Schumann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:32
CPC Classifications
A; A47; A47J; A47J27/00; A47J31/00; A47J31/44; A47J31/60; A47J31/605; B; B01; B01J; B01J47/00; B01J47/012
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
138 words
A process for removing harmful residues from food during cooking comprising: placing food in a cooking pot having a lid, an extracting substance for extracting harmful residues selected from the group consisting of pesticides, herbicides, synthetic fertilizers, hormones and combinations thereof from liquids or a vapor phase and a fluid permeable means separating said food from said extracting substance heating said food to cook said food and drive said residues from said food into a preparation liquid or vapor formed from heating said food; said preparation liquid or vapor passing through said fluid permeable means to contact said extracting substance while said means maintains the separation of said food from said extracting substance; said extracting substance extracting said residues in situ from said preparation or vapor to purify said preparation liquid or vapor in contact with said food.
Claim 2
Dependent Claim
138 words
A process for removing harmful residues from food during cooking comprising: placing food in a cooking pot having a lid, an extracting substance for extracting harmful residues selected from the group consisting of pesticides, herbicides, synthetic fertilizers, hormones and combinations thereof from liquids or a vapor phase and a fluid permeable means separating said food from said extracting substance heating said food to cook said food and drive said residues from said food into a preparation liquid or vapor formed from heating said food; said preparation liquid or vapor passing through said fluid permeable means to contact said extracting substance while said means maintains the separation of said food from said extracting substance; said extracting substance extracting said residues in situ from said preparation or vapor to purify said preparation liquid or vapor in contact with said food.
Claim 3
Dependent Claim
27 words
The process for removing residues as claimed in claim 1 wherein said extracting substance is selected from the group consisting of an ion exchanger, absorber or adsorber.
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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) | 1991-01-25 | 1991-07-27 | 1992-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-25 | 1995-07-27 | 1996-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-25 | 1999-07-27 | 2000-01-26 | $7700.00 | Window Closed / Lapsed |