US2846457A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Decolorized detergents and method of manufacture
Assignee: Rayette Inc
•
Filing: 1953-09-28
•
Granted: 1958-08-05
•
Expires: 1973-09-28
Abstract
No abstract record available.
Inventors
- 👤 John C Zemlin
- 👤 Clarence K Tabata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:25
CPC Classifications
C; C07; C07C; C07C303/00; C07C303/42; C11; C11D; C11D3/00; C11D3/395; C11D3/3953
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
THE METHOD OF MANUFACTURING BLEACHED SULFATED AND SULFONATED DETERGENT SUBSTANCES COMPRISING NEUTRALIZING THE FREE ACID FORM OF THE SULFATED AND SULFONATED DETERGENTS BY SLOWLY ADDING WITH AGITATION SAID ACID DETERGENTS TO A SUFFICIENT QUANTITY OF A STRONGLY ALKALINE NEUTRALIZING SOLUTION, HAVING A PH WELL, ABOVE 8, CONTAINING AN ALKALI METAL CHLORITE SALT DISSOLVED THEREIN, TO CONTINUOUSLY MAINTAIN THE REACTION MIXTURE ALKALINE AT A PH ABOVE ABOUT 8 DURING SAID ADDITION, UNTIL THE ADDITION OF THE ACID MATERIAL TO THE ALKALINE NEUTRALIZING SOLUTION IS SUBSTANTIALLY COMPLETED.
Claim 2
Independent Claim
85 words
THE METHOD OF MANUFACTURING BLEACHED SULFATED AND SULFONATED DETERGENT SUBSTANCES COMPRISING NEUTRALIZING THE FREE ACID FORM OF THE SULFATED AND SULFONATED DETERGENTS BY SLOWLY ADDING WITH AGITATION SAID ACID DETERGENTS TO A SUFFICIENT QUANTITY OF A STRONGLY ALKALINE NEUTRALIZING SOLUTION, HAVING A PH WELL, ABOVE 8, CONTAINING AN ALKALI METAL CHLORITE SALT DISSOLVED THEREIN, TO CONTINUOUSLY MAINTAIN THE REACTION MIXTURE ALKALINE AT A PH ABOVE ABOUT 8 DURING SAID ADDITION, UNTIL THE ADDITION OF THE ACID MATERIAL TO THE ALKALINE NEUTRALIZING SOLUTION IS SUBSTANTIALLY COMPLETED.
References Cited (Backward Citations)
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |