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Patent US3741902A successfully refreshed from Google Patents.
US3741902A
Expired / Lapsed
US
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Laundry prespotter composition
Assignee: Purex Corp
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Filing: 1971-05-24
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Granted: 1973-06-26
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Expires: 1991-05-24
Abstract
Abstract LAUNDRY PRESPOTTER FREE OF WATER AND APPLICABLE TO DAMPENED FABRICS WITHOUT GELLING CONSISTING ESSENTIALLY OF A LIQUID NONIONIC DETERGENT, AN ORGANIC LIQUID MISCIBLE THEREWITH SELECTED FROM CERTAIN ALCOHOLS, ALKYLENE GLYCOLS, ALKYLENE GLYCOL ALKYL OR PHENYL ETHERS, ALKYLENE GLYCOL ESTERS, ALKOXY ETHANOLS AND PROPANOLS AND ALKOXY TRIGLYCOLS, AND OPTIONALLY, AN ENZYME INGREDIENT COMPRISING ALKALINE OR NEUTRAL PROTEASE OR AMYLASE, THE PRESPOTTER CAN BE PACKAGED IN AN AEROSOL CONTAINER FOR USER CONVENIENCE.
Inventors
- 👤 J Barrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:57
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/20; C11D3/2003; C11D3/2065; C11D1/00; C11D1/66; C11D17/00; C11D17/0043; C11D3/2006; C11D3/2041; C11D3/2068; C11D3/38; C11D3/386; C11D3/38618
Claims Analysis
Total Claims: 0
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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) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |