US2806001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyethyleneglycols as laundering aids
Assignee: Individual
•
Filing: 1952-12-05
•
Granted: 1957-09-10
•
Expires: 1972-12-05
Abstract
No abstract record available.
Inventors
- 👤 Fong Willie
- 👤 Harold P Lundgren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:55
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/0005; C11D3/0036
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A PROCESS FOR REMOVING SOIL FROM A TEXTILE MATERIAL AND MINIMIZING THE RE-DEPOSITION OF REMOVED SOIL WHICH COMPRISES WASHING THE MATERIAL WITH A SOLUTION COMPRISING WATER, ABOUT 0.05% TO ABOUT 0.5% OF A SODIUM ALKYL BENZENE SULPHONATE WHEREIN THE ALKYL GROUP CONTAINS 12 TO 18 CARBON ATOMS, AND A SOIL SUSPENDING AGENT CONSISTING OF ABOUT 0.001% TO ABOUT 0.1% CONCENTRATION IN SAID SOLUTION OF A POLYETHYLENEGLYCOL HAVING AN AVERAGE MOLECULAR WEIGHT OF 6,000 TO 7,500.
Claim 2
Dependent Claim
75 words
A PROCESS FOR REMOVING SOIL FROM A TEXTILE MATERIAL AND MINIMIZING THE RE-DEPOSITION OF REMOVED SOIL WHICH COMPRISES WASHING THE MATERIAL WITH A SOLUTION COMPRISING WATER, ABOUT 0.05% TO ABOUT 0.5% OF A SODIUM ALKYL BENZENE SULPHONATE WHEREIN THE ALKYL GROUP CONTAINS 12 TO 18 CARBON ATOMS, AND A SOIL SUSPENDING AGENT CONSISTING OF ABOUT 0.001% TO ABOUT 0.1% CONCENTRATION IN SAID SOLUTION OF A POLYETHYLENEGLYCOL HAVING AN AVERAGE MOLECULAR WEIGHT OF 6,000 TO 7,500.
References Cited (Backward Citations)
US2329694A
Cited
US2566501A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-09 | 1961-03-11 | 1961-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-09 | 1965-03-11 | 1965-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-09 | 1969-03-11 | 1969-09-10 | $7700.00 | Window Closed / Lapsed |