Patent US2873192A successfully refreshed from Google Patents.
US2873192A
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Clarification of beverages
Assignee: Dow Chemical Co
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Filing: 1957-12-09
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Granted: 1959-02-10
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Expires: 1977-12-09
Abstract
No abstract record available.
Inventors
- 👤 Wilhelm E Walles
- 👤 William F Tousignant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:12
CPC Classifications
A; A23; A23L; A23L2/00; A23L2/70; A23L2/80; C; C12; C12H; C12H1/00; C12H1/02; C12H1/04; C12H1/0416; C12H1/0424
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
PROCESS FOR TREATING ESSENTIALLY CLEAR BEVERAGES TO MATERIALLY CLARIFY AND RENDER THEM STABILIZED AGAINST HAZING WHICH PROCESS COMPRISES ADDING TO THE BEVERAGE BEING TREATED A MINOR PROPORTION OF BETWEEN ABOUT 0.0001 AND 1 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE BEVERAGE, OF A COAGULATING AND PRECIPITATING AGENT FOR HAZE-INDUCING INGREDIENTS IN THE BEVERAGE, WHICH AGENT CONSISTS OF AN N-VINYL-2-OXAZOLIDINONE POLYMER OF THE STRUCTURE:
Claim 2
Dependent Claim
65 words
PROCESS FOR TREATING ESSENTIALLY CLEAR BEVERAGES TO MATERIALLY CLARIFY AND RENDER THEM STABILIZED AGAINST HAZING WHICH PROCESS COMPRISES ADDING TO THE BEVERAGE BEING TREATED A MINOR PROPORTION OF BETWEEN ABOUT 0.0001 AND 1 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF THE BEVERAGE, OF A COAGULATING AND PRECIPITATING AGENT FOR HAZE-INDUCING INGREDIENTS IN THE BEVERAGE, WHICH AGENT CONSISTS OF AN N-VINYL-2-OXAZOLIDINONE POLYMER OF THE STRUCTURE:
References Cited (Backward Citations)
US2688550A
Cited
US2811449A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-09 | 1962-08-11 | 1963-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-09 | 1966-08-11 | 1967-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-09 | 1970-08-11 | 1971-02-10 | $7700.00 | Window Closed / Lapsed |