Patent US2987401A successfully refreshed from Google Patents.
US2987401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition and method for inhibiting discoloration of cut organic materials
Assignee: Individual
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Filing: 1957-12-11
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Granted: 1961-06-06
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Expires: 1977-12-11
Abstract
No abstract record available.
Inventors
- 👤 Carter D Johnston
- 👤 Mccalip J Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:45
CPC Classifications
A; A23; A23B; A23B7/00; A23B7/14; A23B7/153
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
THE PROCESS OF INHIBITING THE DISCOLORATION OF CUT FRUITS AND VEGETABLES ON EXPOSURE TO AIR WHICH COMPRISES APPLYING TO THE CUT SURFACES THEREOF A DISCOLORATION-INHIBITING AMOUNT OF A COMPOSITION CONSISTING ESSENTIALLY OF A WATER SOLUTION OF CALCIUM ION, PHYTATE ANION, AND THE ANION OF AN EDIBLE WATER-SOLUBLE ACID OTHER THAN PHYTIC ACID WHEREIN THE RATIO OF GRAM ATOMS OF CALCIUM TO EQUIVALENTS OF PHYTATE IS ABOUT 2, THE RATIO OF GRAM ATOMS OF CALCIUM TO EQUIVALENTS OF SAID NON-PHYTATE ANION LIES WITHIN THE RANGE OF ABOUT 1 TO ABOUT 4, THE PH OF SAID SOLUTION LIES WITHIN THE RANGE OF ABOUT 0.7 TO ABOUT 2.1, SAID NON-PHYTATE ANION BEING DERIVED FROM THE GROUP OF ACIDS CONSISTING OF HYDROCHLORIC, ORTHOPHOSPHORIC, CITRIC, LACTIC, MALIC, MALONIC, AND MALEIC ACIDS.
Claim 2
Dependent Claim
126 words
THE PROCESS OF INHIBITING THE DISCOLORATION OF CUT FRUITS AND VEGETABLES ON EXPOSURE TO AIR WHICH COMPRISES APPLYING TO THE CUT SURFACES THEREOF A DISCOLORATION-INHIBITING AMOUNT OF A COMPOSITION CONSISTING ESSENTIALLY OF A WATER SOLUTION OF CALCIUM ION, PHYTATE ANION, AND THE ANION OF AN EDIBLE WATER-SOLUBLE ACID OTHER THAN PHYTIC ACID WHEREIN THE RATIO OF GRAM ATOMS OF CALCIUM TO EQUIVALENTS OF PHYTATE IS ABOUT 2, THE RATIO OF GRAM ATOMS OF CALCIUM TO EQUIVALENTS OF SAID NON-PHYTATE ANION LIES WITHIN THE RANGE OF ABOUT 1 TO ABOUT 4, THE PH OF SAID SOLUTION LIES WITHIN THE RANGE OF ABOUT 0.7 TO ABOUT 2.1, SAID NON-PHYTATE ANION BEING DERIVED FROM THE GROUP OF ACIDS CONSISTING OF HYDROCHLORIC, ORTHOPHOSPHORIC, CITRIC, LACTIC, MALIC, MALONIC, AND MALEIC ACIDS.
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) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |