Patent US3154490A successfully refreshed from Google Patents.
US3137582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preservation of plant materials
Assignee: General Foods Corp
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Filing: 1962-04-25
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Granted: 1964-06-16
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Expires: 1982-04-25
Abstract
No abstract record available.
Inventors
- 👤 Alina S Szczesniak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:28
CPC Classifications
A; A23; A23B; A23B7/00; A23B7/04; A23B7/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
THE METHOD OF PRESERVING THE TURGOR AND CRISP TEXTURE OF FROZEN FRESH PLANT MATERIALS UPON THAWING WHICH COMPRISES DIRECTLY CONTACTING A SOLUTION OF DIALKYL SULFOXIDE AT A CONCENTRATION OF ABOVE 30% WHEREIN TEH ALKYL GROUPS CONTAIN FROM 1 TO 6 CARBON WITH A PLANT MATERIAL FOR AT LEAST ONE MINUTE TO REPLACE AT LEAST PART OF THE MOISTURE IN SAID PLANT WITH SAID DIALKYL SULFOXIDE, AND THEN FREEZING SAID MATERIAL AT A TEMPERATURE BELOW 32*F.
Claim 2
Independent Claim
75 words
THE METHOD OF PRESERVING THE TURGOR AND CRISP TEXTURE OF FROZEN FRESH PLANT MATERIALS UPON THAWING WHICH COMPRISES DIRECTLY CONTACTING A SOLUTION OF DIALKYL SULFOXIDE AT A CONCENTRATION OF ABOVE 30% WHEREIN TEH ALKYL GROUPS CONTAIN FROM 1 TO 6 CARBON WITH A PLANT MATERIAL FOR AT LEAST ONE MINUTE TO REPLACE AT LEAST PART OF THE MOISTURE IN SAID PLANT WITH SAID DIALKYL SULFOXIDE, AND THEN FREEZING SAID MATERIAL AT A TEMPERATURE BELOW 32*F.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |