US2776291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of stabilizing lauryl pyridinium hydrochloride
Assignee: Vitogen Products Inc
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Filing: 1954-10-25
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Granted: 1957-01-01
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Expires: 1974-10-25
Abstract
No abstract record available.
Inventors
- 👤 Frank X Russo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:54
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/06; C07D213/16; C07D213/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A METHOD OF PURIFYING AND CLARIFYING A CLOUDY AQUEOUS SOLUTION OF CRUDE LAURYL PYRIDINIUM CHLORIDE CONTAINING LAURYL ALCOHOL, LAURYL CHLORIDE AND PYRIDINIUM CHLORIDE IMPURITIES, WHICH WHEN DISSOLVED IN WATER PROVIDES TURBID SOLUTION COMPRISING DISSOLVING SAID CRUDE LAURYL PYDRIDINIUM CHLORIDE IN WATER, TREATING THE WATER SOLUTION OF SAID CRUDE PYRIDINIUM CHLORIDE UNDER AGITATION WITH A WATER-SOLUBLE PROTEIN IN AN AMOUNT SUFFICIENT TO REMOVE THE TURBIDITY, SAID PROTEIN BEING ADDED TO THE SURFACE OF SAID SOLUTION TO FORM A PRECIPITATE IN THE FORM OF LUMPS WHICH SETTLE TO THE BOTTOM AND WHICH REMOVE THE CLOUDS NESS IN SAID CRUDE SOLUTION, THE AMOUNT OF SAID PROTEIN BEING ADDED BEING SUCH AS WILL REMOVE TH IMPURITIES CAUSING SAID CLOUDINESS TO THE BOTTOM, AND SEPARATING THE CLARIFIED WATER SOLUTION OF LAURYL PYRIDINIUM CHLORIDE FROM THE PRECIPITATED PROTEIN.
Claim 2
Independent Claim
132 words
A METHOD OF PURIFYING AND CLARIFYING A CLOUDY AQUEOUS SOLUTION OF CRUDE LAURYL PYRIDINIUM CHLORIDE CONTAINING LAURYL ALCOHOL, LAURYL CHLORIDE AND PYRIDINIUM CHLORIDE IMPURITIES, WHICH WHEN DISSOLVED IN WATER PROVIDES TURBID SOLUTION COMPRISING DISSOLVING SAID CRUDE LAURYL PYDRIDINIUM CHLORIDE IN WATER, TREATING THE WATER SOLUTION OF SAID CRUDE PYRIDINIUM CHLORIDE UNDER AGITATION WITH A WATER-SOLUBLE PROTEIN IN AN AMOUNT SUFFICIENT TO REMOVE THE TURBIDITY, SAID PROTEIN BEING ADDED TO THE SURFACE OF SAID SOLUTION TO FORM A PRECIPITATE IN THE FORM OF LUMPS WHICH SETTLE TO THE BOTTOM AND WHICH REMOVE THE CLOUDS NESS IN SAID CRUDE SOLUTION, THE AMOUNT OF SAID PROTEIN BEING ADDED BEING SUCH AS WILL REMOVE TH IMPURITIES CAUSING SAID CLOUDINESS TO THE BOTTOM, AND SEPARATING THE CLARIFIED WATER SOLUTION OF LAURYL PYRIDINIUM CHLORIDE FROM THE PRECIPITATED PROTEIN.
References Cited (Backward Citations)
US2502643A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-01 | 1960-07-02 | 1961-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-01 | 1964-07-02 | 1965-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-01 | 1968-07-02 | 1969-01-01 | $7700.00 | Window Closed / Lapsed |