US3173948A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crystalline potassium sorbate and preparation thereof from a basic aqueous solution
Assignee: Hoechst AG
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Filing: 1963-01-29
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Granted: 1965-03-16
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Expires: 1983-01-29
Abstract
No abstract record available.
Inventors
- 👤 Probst Otto
- 👤 Oehme Horst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:24
CPC Classifications
C; C07; C07C; C07C57/00; C07C57/02; C07C57/03; C07C57/10; C07C51/00; C07C51/41; C07C51/412; C07C51/42; C07C51/43
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
66 words
A PROCESS FOR THE MANUFACTURE OF STABLE, STORABLE, CRYSTALLINE POTASSIUM SORBATE CONTAINING LESS THAN 0.2 PERCENT BY WEIGHT OF WATER WHICH COMPRISES ATOMIZING AN AQUEOUS POTASSIUM SORBATE SOLUTION, SAID SOLUTION HAVING A PH OF AT LEAST 9.2 WHENMEASURED AT 20*C. AT A CONCENTRATION OF 20 PERCENT BY WEIGHT, INTO AN ATMOSPHERE HAVING A TEMPERATURE BETWEEN ROOM TEMPERATURE AND 155*C., WHEREBY WATER IS EVAPORATED FROM SAID SOLUTION.
Claim 2
Dependent Claim
66 words
A PROCESS FOR THE MANUFACTURE OF STABLE, STORABLE, CRYSTALLINE POTASSIUM SORBATE CONTAINING LESS THAN 0.2 PERCENT BY WEIGHT OF WATER WHICH COMPRISES ATOMIZING AN AQUEOUS POTASSIUM SORBATE SOLUTION, SAID SOLUTION HAVING A PH OF AT LEAST 9.2 WHENMEASURED AT 20*C. AT A CONCENTRATION OF 20 PERCENT BY WEIGHT, INTO AN ATMOSPHERE HAVING A TEMPERATURE BETWEEN ROOM TEMPERATURE AND 155*C., WHEREBY WATER IS EVAPORATED FROM SAID SOLUTION.
Claim 3
Dependent Claim
56 words
A STABLE, STORABLE, CRYSTALLINE POTASSIUM SORBATE CONTAINING LESS THAN 0.2 PERCENT BY WEIGHT OF WATER AND OBTAINED BY ATOMIZING AN AQUEOUS POTASSIUM SORBATE SOLUTION, SAID SOLUTION HAVING A PH OF AT LEAST 9.2 WHEN MEASURED AT 20*C. AT A CONCENTRATION OF 20 PERCENT BY WEIGHT, INTO AN ATMOSPHERE HAVING A TEMPERATURE BETWEEN ROOM TEMPERATURE AND 155*C.
Claim 4
Dependent Claim
56 words
A STABLE, STORABLE, CRYSTALLINE POTASSIUM SORBATE CONTAINING LESS THAN 0.2 PERCENT BY WEIGHT OF WATER AND OBTAINED BY ATOMIZING AN AQUEOUS POTASSIUM SORBATE SOLUTION, SAID SOLUTION HAVING A PH OF AT LEAST 9.2 WHEN MEASURED AT 20*C. AT A CONCENTRATION OF 20 PERCENT BY WEIGHT, INTO AN ATMOSPHERE HAVING A TEMPERATURE BETWEEN ROOM TEMPERATURE AND 155*C.
References Cited (Backward Citations)
US2866819A
Cited
DE1045390B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |