Patent US4031253A successfully refreshed from Google Patents.
US4031253A
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US
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Procedure for preserving root crops by deep freezing and their peeling
Assignee: Individual
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Filing: 1975-11-03
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Granted: 1977-06-21
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Expires: 1995-11-03
Abstract
Abstract The present invention concerns a procedure for preserving fully ripened potatoes and other root crops that have to be peeled, by deep freezing, and their peeling. In accordance with this invention the products to be preserved are preboiled or boiled and deep frozen in unpeeled condition, or alternatively in partly peeled condition, and the peeling proper is carried out after deep freezing.
Inventors
- 👤 Mikko Tapani Suortti
- 👤 Yrjo Molkki
- 👤 Olavi Elis Nikkila
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:24
CPC Classifications
A; A23; A23B; A23B7/00; A23B7/04; A23B7/0425; A23L; A23L19/00; A23L19/10; A23L19/12; A23L19/14; A23L5/00; A23L5/57; A23N; A23N7/00; A23N7/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
73 words
In a process for preserving fully ripened potatoes and other root crops requiring peeling by boiling or parboiling followed by deep freezing, the improvement which comprises carrying out the boiling or parboiling and deep freezing while the crops are in the unpeeled state, peeling the crops in the deep frozen state and wherein the germ buds and up to 50% of the peel of the root crop are removed prior to deep freezing.
Claim 2
Dependent Claim
73 words
In a process for preserving fully ripened potatoes and other root crops requiring peeling by boiling or parboiling followed by deep freezing, the improvement which comprises carrying out the boiling or parboiling and deep freezing while the crops are in the unpeeled state, peeling the crops in the deep frozen state and wherein the germ buds and up to 50% of the peel of the root crop are removed prior to deep freezing.
Claim 3
Dependent Claim
33 words
The process of claim 1 wherein the frozen crop is treated to thaw only the outermost skin thereof, the interior of the crop remaining deep frozen and peeling the thus partially thawed crop.
Claim 4
Dependent Claim
14 words
The process of claim 2 wherein after peeling, the crop is again deep frozen.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-06-20 | 1980-12-20 | 1981-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-06-20 | 1984-12-20 | 1985-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-06-20 | 1988-12-20 | 1989-06-21 | $7700.00 | Window Closed / Lapsed |