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US3982030A
Expired / Lapsed
US
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Preservation of crustacea
Assignee: Gutix SA
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Filing: 1974-04-16
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Granted: 1976-09-21
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Expires: 1994-04-16
Abstract
Abstract A composition for the preservation of crustacea is described. This composition contains magnesium carbonate, citric acid and an inorganic metabisulfite, and is effective in preserving crustacea particularly by preventing melanosis.
Inventors
- 👤 D. Luis Gutierrez Alsina
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:46
CPC Classifications
A; A23; A23B; A23B4/00; A23B4/12; A23B4/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
52 words
A composition for preserving crustacea by preventing melanosis, consisting essentially of about 25 to 35% by weight of magnesium carbonate, about 40 to 60% by weight of citric acid and about 15 to 25% by weight of a metabisulfite selected from the group consisting of sodium and potassium metabisulfite and mixtures thereof.
Claim 2
Dependent Claim
52 words
A composition for preserving crustacea by preventing melanosis, consisting essentially of about 25 to 35% by weight of magnesium carbonate, about 40 to 60% by weight of citric acid and about 15 to 25% by weight of a metabisulfite selected from the group consisting of sodium and potassium metabisulfite and mixtures thereof.
Claim 3
Dependent Claim
23 words
A composition according to claim 1 which is in granular form, the size of the granules being about 400 mesh per square centimeter.
Claim 4
Dependent Claim
12 words
A composition according to claim 1 wherein the metabisulfite is sodium metabisulfite.
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) | 1979-09-21 | 1980-03-22 | 1980-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-21 | 1984-03-22 | 1984-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-21 | 1988-03-22 | 1988-09-21 | $7700.00 | Window Closed / Lapsed |