US3681141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for cleaning hard surfaces
Assignee: SC Johnson and Son Inc
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Filing: 1970-12-17
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Granted: 1972-08-01
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Expires: 1990-12-17
Abstract
Abstract THE DISCLOSURE RELATES TO A PROCESS FOR CLEANING HARD SURFACES SUCH AS THE PORCELAINE AND ENAMEL SURFACES OF SANITARY WARE WHICH ARE IN CONTACT WITH WATER. CLEANING IS EFFECTED BY APPLYING TO SUCH SURFACES A VISCOUS, FLUID COMPOSITION CONSISTING ESSENTIALLY OF WATER; A MINERAL ACID AND A WATER-SOLUBLE SYNTHETIC ORGANIC POLYMER. OPTIONAL ADDITIONAL INGREDIENTS MAY ALSO BE PRESENT. THE CLEANING COMPOSITIONS READILY WET THE SURFACE TO BE CLEANED AND FORM A UNIFORM, CONTINUOUS SHEET OF ACTIVE MATERIAL BELOW THE WATER LINE.
Inventors
- 👤 Erland L Muoio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:18
CPC Classifications
C; C11; C11D; C11D7/00; C11D7/02; C11D7/04; C11D7/08; C11D3/00; C11D3/16; C11D3/37
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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |