Patent US3213028A successfully refreshed from Google Patents.
US3213028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detergent for soiled fibers
Assignee: Whirlpool Corp
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Filing: 1961-04-28
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Granted: 1965-10-19
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Expires: 1981-04-28
Abstract
No abstract record available.
Inventors
- 👤 Donald C Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:56
CPC Classifications
C; C11; C11D; C11D9/00; C11D9/002; C11D3/00; C11D3/16; C11D3/20; C11D3/2068
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A CLEANING COMPOSITION FOR SOILED FIBERS, CONSISTING ESSENTIALLY OF: ABOUT 1-10 PARTS BY WEIGHT OF A DETERGENT MATERIAL PER ABOUT 10 PARTS BY WEIGHT OF A PROPYLENE OXIDE ADDUCT OF GLYCEROL CONTAINING ABOUT 10 MOLS OF PROPYLENE OXIDE PER MOL OF GLYCEROL AS A PLASTICIZER FOR SAID FIBERS.
Claim 2
Dependent Claim
48 words
A CLEANING COMPOSITION FOR SOILED FIBERS, CONSISTING ESSENTIALLY OF: ABOUT 1-10 PARTS BY WEIGHT OF A DETERGENT MATERIAL PER ABOUT 10 PARTS BY WEIGHT OF A PROPYLENE OXIDE ADDUCT OF GLYCEROL CONTAINING ABOUT 10 MOLS OF PROPYLENE OXIDE PER MOL OF GLYCEROL AS A PLASTICIZER FOR SAID FIBERS.
References Cited (Backward Citations)
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Cited
GB307948A
Cited
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Cited
US2775533A
Cited
US2992995A
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |