US2975067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preserving comestibles
Assignee: Individual
•
Filing: 1957-02-01
•
Granted: 1961-03-14
•
Expires: 1977-02-01
Abstract
No abstract record available.
Inventors
- 👤 Winterberg Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:50
CPC Classifications
A; A23; A23P; A23P20/00; A23P20/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A METHOD OF PRESERVING COMESTIBLES, COMPRISING THE STEPS OF PREPARING A VISCOUS AQUEOUS EMULSION, IN WHICH THE DISPERSED PHASE IS A NON-TOXIC CARBON-CHAIN POLYMERIZABLE PLASTIC, SELECTED FROM THE CLASS CONSISTING OF POLYVINYL ACETATE, VINYL ACETATE MIXED WITH WAX, VINYLIDENE CHLORIDE, AND VINYLIDENE CHLORIDE MIXED WITH VINYL CHLORIDE, ADMIXING THERETO PURE SORBIC ACID IN GRANULAR FORM AND APPLYING THE EMULSION TO THE COMESTIBLES TO BE PROTECTED, WITH ORIGINAL UNDISSOLVED GRANULES STILL PRESENT IN THE MATERIAL IN SUBSTANTIALLY UNDISSOVED CONDITION.
Claim 2
Independent Claim
78 words
A METHOD OF PRESERVING COMESTIBLES, COMPRISING THE STEPS OF PREPARING A VISCOUS AQUEOUS EMULSION, IN WHICH THE DISPERSED PHASE IS A NON-TOXIC CARBON-CHAIN POLYMERIZABLE PLASTIC, SELECTED FROM THE CLASS CONSISTING OF POLYVINYL ACETATE, VINYL ACETATE MIXED WITH WAX, VINYLIDENE CHLORIDE, AND VINYLIDENE CHLORIDE MIXED WITH VINYL CHLORIDE, ADMIXING THERETO PURE SORBIC ACID IN GRANULAR FORM AND APPLYING THE EMULSION TO THE COMESTIBLES TO BE PROTECTED, WITH ORIGINAL UNDISSOLVED GRANULES STILL PRESENT IN THE MATERIAL IN SUBSTANTIALLY UNDISSOVED CONDITION.
References Cited (Backward Citations)
US1943468A
Cited
US2196164A
Cited
US2213557A
Cited
US2379294A
Cited
US2404519A
Cited
US2469914A
Cited
US2524022A
Cited
US2713544A
Cited
US2724650A
Cited
US2756154A
Cited
US2858225A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-13 | 1964-09-12 | 1965-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-13 | 1968-09-12 | 1969-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-13 | 1972-09-12 | 1973-03-14 | $7700.00 | Window Closed / Lapsed |