US2807590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal alkaryl sulfonates and method
Assignee: —
•
Filing: —
•
Granted: 1957-09-24
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Expires: 1974-09-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:17
CPC Classifications
C; C10; C10M; C10M173/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
THE METHOD OF IMPROVING THE SURFACE ACTIVE PROPERTIES OF A METAL SALT OF AN ALKARYL SULFONIC ACID HAVING AN AVERAGE MOLECULAR WEIGHT WITHIN THE RANGE OF 425 TO 475 BY INCORPORATING THEREIN AND BASED ON THE WEIGHT OF SAID METAL SALT 3 TO 50 WEIGHT PERCENT OF A MIXTURE, SAID MIXTURE COMPRISING 50 TO 100 WEIGHT PERCENT OF A METAL SALT OF A MAHOGANY SULFONIC ACID HAVING AN AVERAGE MOLECULAR WEIGHT WITHIN THE RANGE OF 450 TO 500 AND 50 TO 0 WEIGHT PERCENT OF A METAL SALT OF A MAHOGANY SULFONIC ACID HAVING AN AVERAGE MOLECULAR WEIGHT WITHIN THE RANGE OF 350 TO 400 WHEREIN THE METAL OF SAID SALTS IS SELECTED FROM THE GROUP CONSISTING OF THE ALKALI AND ALKALINE EARTH METALS.
Claim 2
Independent Claim
124 words
THE METHOD OF IMPROVING THE SURFACE ACTIVE PROPERTIES OF A METAL SALT OF AN ALKARYL SULFONIC ACID HAVING AN AVERAGE MOLECULAR WEIGHT WITHIN THE RANGE OF 425 TO 475 BY INCORPORATING THEREIN AND BASED ON THE WEIGHT OF SAID METAL SALT 3 TO 50 WEIGHT PERCENT OF A MIXTURE, SAID MIXTURE COMPRISING 50 TO 100 WEIGHT PERCENT OF A METAL SALT OF A MAHOGANY SULFONIC ACID HAVING AN AVERAGE MOLECULAR WEIGHT WITHIN THE RANGE OF 450 TO 500 AND 50 TO 0 WEIGHT PERCENT OF A METAL SALT OF A MAHOGANY SULFONIC ACID HAVING AN AVERAGE MOLECULAR WEIGHT WITHIN THE RANGE OF 350 TO 400 WHEREIN THE METAL OF SAID SALTS IS SELECTED FROM THE GROUP CONSISTING OF THE ALKALI AND ALKALINE EARTH METALS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-23 | 1961-03-25 | 1961-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-23 | 1965-03-25 | 1965-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-23 | 1969-03-25 | 1969-09-24 | $7700.00 | Window Closed / Lapsed |