Patent US3671441A successfully refreshed from Google Patents.
US3671441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dry cleaning detergent
Assignee: OCCIDENTIAL ELECTROCHEMICALS Corp
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Filing: 1968-11-04
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Granted: 1972-06-20
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Expires: 1988-11-04
Abstract
Abstract Dry-cleaning compositions containing a combination of an amine oxide and a phosphate ester of a nonionic surfactant are shown to give optimum results with respect to the removal of all types of soils and particularly the removal of water-soluble soils from the articles being dry-cleaned. Other components may optionally be added to obtain certain specific results.
Inventors
- 👤 Lawrence Dasch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:39
CPC Classifications
D; D06; D06L; D06L1/00; D06L1/02; D06L1/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
64 words
from 5-20 percent by weight of an amine oxide selected from the group consisting of dimethyl hexadecylamine oxide and dimethyl stearylamine oxide, said amine oxide being present in an amount sufficient to increase the ability of the composition to retain water and remove water soluble soils without sacrificing other properties of said composition and c. from 0.25 to 15.0 percent by volume of water.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |