US2794004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wetting agents and a process of making same
Assignee: Durand and Huguenin AG
•
Filing: 1953-10-13
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Granted: 1957-05-28
•
Expires: 1973-10-13
Abstract
No abstract record available.
Inventors
- 👤 Ratti Roger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:15
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/66; C11D1/78; C11D1/02; C11D1/12; C11D1/22; C11D3/00; C11D3/16; C11D3/36; C11D3/362; Y; Y10; Y10S; Y10S516/00; Y10S516/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A WETTING AGENT CONSISTING ESSENTIALLY OF A MIXTURE OF AT LEAST ONE WATER-SOLUBLE SALT OF AN ALKYL-ARYL-SULFONIC ACID AND OF AT LEAST ONE SUBSTANTIALLY WATER-INSOLUBLE TRIESTER OF PHOSPHORIC ACID SELECTED FROM THE GROUP CONSISTING OF TRIALKY PHOSPHATES AND TRIALKOXYLAKYL PHOSPHATES, THE ALKYL RADICALS OF WHICH CONTAIN 3 TO 8 CARBON ATOMS, THE QUANTITY OF PHOSPHORIC ACID TRIESTER PRESENT AMOUNTING TO 10 TO 40% BY WEIGHT RELATAIVE TO THE SAID SALT.
Claim 2
Dependent Claim
70 words
A WETTING AGENT CONSISTING ESSENTIALLY OF A MIXTURE OF AT LEAST ONE WATER-SOLUBLE SALT OF AN ALKYL-ARYL-SULFONIC ACID AND OF AT LEAST ONE SUBSTANTIALLY WATER-INSOLUBLE TRIESTER OF PHOSPHORIC ACID SELECTED FROM THE GROUP CONSISTING OF TRIALKY PHOSPHATES AND TRIALKOXYLAKYL PHOSPHATES, THE ALKYL RADICALS OF WHICH CONTAIN 3 TO 8 CARBON ATOMS, THE QUANTITY OF PHOSPHORIC ACID TRIESTER PRESENT AMOUNTING TO 10 TO 40% BY WEIGHT RELATAIVE TO THE SAID SALT.
References Cited (Backward Citations)
GB538408A
Cited
US2469377A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-27 | 1960-11-26 | 1961-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-27 | 1964-11-26 | 1965-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-27 | 1968-11-26 | 1969-05-28 | $7700.00 | Window Closed / Lapsed |