US4601909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of freezing fishery products
Assignee: Individual
•
Filing: 1985-08-06
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Granted: 1986-07-22
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Expires: 2005-08-06
Abstract
Abstract A method of freezing sea food including the steps of preparing brine containing rapeseed oil added to a solution of propylene glycol, calcium chloride and water, cooling the brine and subsequently immersing the sea food in the brine for freezing.
Inventors
- 👤 Kazunori Nagoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:13
CPC Classifications
A; A23; A23B; A23B4/00; A23B4/06; A23B4/08; A23B4/066
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
62 words
A method for freezing fishery products which consists of cooling brine to a temperature of -30° C. to -42° C. prepared by adding 0.1 to 0.5% by weight of rapeseed oil to a solution comprising 40% by weight of propylene glycol 10% by weight of calcium chloride and 50% by weight of water, and subsequently immersing the fishery products in said brine.
Claim 2
Independent Claim
62 words
A method for freezing fishery products which consists of cooling brine to a temperature of -30° C. to -42° C. prepared by adding 0.1 to 0.5% by weight of rapeseed oil to a solution comprising 40% by weight of propylene glycol 10% by weight of calcium chloride and 50% by weight of water, and subsequently immersing the fishery products in said brine.
Claim 3
Independent Claim
61 words
A method of freezing seafood comprising: cooling brine to a temperature of -30° C. to -42° C. prepared by adding 0.1 to 0.5% by weight of rapeseed oil into a solution which includes 40% by weight of propylene glycol, 10% by weight of calcium chloride and 50% by weight of water; and immersing and freezing said seafood in the cooled brine.
Claim 4
Independent Claim
61 words
A method of freezing seafood comprising: cooling brine to a temperature of -30° C. to -42° C. prepared by adding 0.1 to 0.5% by weight of rapeseed oil into a solution which includes 40% by weight of propylene glycol, 10% by weight of calcium chloride and 50% by weight of water; and immersing and freezing said seafood in the cooled brine.
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) | 1989-07-21 | 1990-01-20 | 1990-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-21 | 1994-01-20 | 1994-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-21 | 1998-01-20 | 1998-07-22 | $7700.00 | Window Closed / Lapsed |