Patent US2669520A successfully refreshed from Google Patents.
US2669520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processing of shellfish and crustaceans
Assignee: Blue Channel Corp
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Filing: 1950-06-02
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Granted: 1954-02-16
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Expires: 1970-06-02
Abstract
No abstract record available.
Inventors
- 👤 Carl R Fellers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:29
CPC Classifications
A; A23; A23B; A23B4/00; A23B4/14; A23B4/18; A23B4/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
THE METHOD OF PRESERVING THE NATURAL COLOR, FLAVOR AND APPEARANCE OF FRESH AND PROCESSED SEAFOODS OF SHELLFISH AND CRUSTACEANS WHICH COMPRISES TREATING THE SAME WITH A SMALL AMOUNT OF A SOLUBLE ETHYLENEDIAMINE TETRACETIC ACID COMPOUND.
Claim 2
Independent Claim
35 words
THE METHOD OF PRESERVING THE NATURAL COLOR, FLAVOR AND APPEARANCE OF FRESH AND PROCESSED SEAFOODS OF SHELLFISH AND CRUSTACEANS WHICH COMPRISES TREATING THE SAME WITH A SMALL AMOUNT OF A SOLUBLE ETHYLENEDIAMINE TETRACETIC ACID COMPOUND.
References Cited (Backward Citations)
US2088831A
Cited
US2381019A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-15 | 1957-08-17 | 1958-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-15 | 1961-08-17 | 1962-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-15 | 1965-08-17 | 1966-02-16 | $7700.00 | Window Closed / Lapsed |