US3787590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for solubilizing tea cream
Assignee: Tetley Inc
•
Filing: 1971-01-27
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Granted: 1974-01-22
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Expires: 1991-01-27
Abstract
Abstract AN INCREASED YIELD OF TEA SOLUBLES IS OBTAINED BY SUBJECTING THE INSOLUBLE PRECIPITABLE OR TEA CREAM OBTAINED BY COOLING A DILUTE TEA EXTRACT TO AN OXIDIZING TREATMENT IN THE ABSENCE OF ADDED ALKALI.
Inventors
- 👤 B Borders
- 👤 W Rehman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:36
CPC Classifications
A; A23; A23F; A23F3/00; A23F3/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |