US3117004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of removing tannins from vegetable liquids of the beverage class
Assignee: Individual
•
Filing: 1961-06-13
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Granted: 1964-01-07
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Expires: 1981-06-13
Abstract
No abstract record available.
Inventors
- 👤 William D Mcfarlane
- 👤 Peter D Bayne
- 👤 Julian L Azorlosa
- 👤 Martinelli E Jean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:52
CPC Classifications
C; C12; C12H; C12H1/00; C12H1/02; C12H1/04; C12H1/0416; C12H1/0424; C12C; C12C7/00; C12C7/14; C12C7/20; C12C7/205; C12C7/24; C12C9/00; C12C9/02; C12C2200/00; C12C2200/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
THE METHOD OF REMOVING TANNINS FROM VEGETABLE LIQUIDS OF THE BEVERAGE CLASS WHICH COMPRISES CONTACTING SAID VEGETABLE LIQUID WITH A POLYMERIC N VINYL POLYLACTAM OBTAINED BY HEATING AN N-VINYL LACTAM TO A TEMPERATURE OF FROM ABOUT 40* TO 200*C. IN THE PRESENCE OF A SMALL AMOUNT OF AN ALKALI POLYMERIZATION CATALYST TO CAUSE ADSORPTION OF TANNINS THEREBY.
Claim 2
Independent Claim
57 words
THE METHOD OF REMOVING TANNINS FROM VEGETABLE LIQUIDS OF THE BEVERAGE CLASS WHICH COMPRISES CONTACTING SAID VEGETABLE LIQUID WITH A POLYMERIC N VINYL POLYLACTAM OBTAINED BY HEATING AN N-VINYL LACTAM TO A TEMPERATURE OF FROM ABOUT 40* TO 200*C. IN THE PRESENCE OF A SMALL AMOUNT OF AN ALKALI POLYMERIZATION CATALYST TO CAUSE ADSORPTION OF TANNINS THEREBY.
References Cited (Backward Citations)
US2947633A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-06 | 1967-07-08 | 1968-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-06 | 1971-07-08 | 1972-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-06 | 1975-07-08 | 1976-01-07 | $7700.00 | Window Closed / Lapsed |