Patent US3958022A successfully refreshed from Google Patents.
US3958022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating seafood
Assignee: Individual
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Filing: 1974-02-27
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Granted: 1976-05-18
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Expires: 1994-02-27
Abstract
Abstract Methods are set forth for the treatment of seafood whereby toxic heavy metal ions, especially mercury ions, are removed from the seafood making the same safe for consumption. In a preferred embodiment of the invention, the method comprises washing the seafood with an organic sulphur complexing agent for heavy metal ions and heating the seafood at a temperature and for a time sufficient to volatilize the heavy metal ions therefrom.
Inventors
- 👤 Andre Danesh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:49
CPC Classifications
A; A23; A23L; A23L5/00; A23L5/20; A23L5/27
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
60 words
A process for treating seafood to remove heavy metal ions therefrom, said process comprising washing said seafood with a complexing agent for heavy metal ions and heat treating said seafood at a temperature of at least 212°F and a pressure of at least 1.5 atmospheres for a time sufficient to volatilize and remove said heavy metal ions from said seafood.
Claim 2
Dependent Claim
60 words
A process for treating seafood to remove heavy metal ions therefrom, said process comprising washing said seafood with a complexing agent for heavy metal ions and heat treating said seafood at a temperature of at least 212°F and a pressure of at least 1.5 atmospheres for a time sufficient to volatilize and remove said heavy metal ions from said seafood.
Claim 3
Dependent Claim
18 words
The process of claim 1 where the seafood is canned subsequent to removal of the heavy metal ions.
Claim 4
Dependent Claim
13 words
The process of claim 1 where the temperature varies between 212° and 300°F.
Claim 5
Dependent Claim
13 words
The process of claim 3 where the temperature varies between 220° and 270°F.
Claim 6
Dependent Claim
14 words
The process of claim 3 where the pressure varies between 1.5 and 250 atmospheres.
Claim 7
Dependent Claim
14 words
The process of claim 5 where the pressure varies between 1.5 and 50 atmospheres.
Claim 8
Dependent Claim
14 words
The process of claim 1 where the complexing agent is an organic sulphur compound.
Claim 9
Dependent Claim
12 words
The process of claim 7 where the complexing agent is cysteine hydrochloride.
References Cited (Backward Citations)
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Cited
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Cited
US2669520A
Cited
US2847308A
Cited
US3552978A
Cited
US3736153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-05-18 | 1979-11-17 | 1980-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-18 | 1983-11-17 | 1984-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-18 | 1987-11-17 | 1988-05-18 | $7700.00 | Window Closed / Lapsed |