US3578499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gelling composition for general purpose cleaning and sanitizing
Assignee: WR Grace and Co
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Filing: 1968-08-02
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Granted: 1971-05-11
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Expires: 1988-08-02
Abstract
Abstract THE DISCLOSED INVENTION INCLUDES A POWDER GELLING COMPOSITION CONTAINING A GELLING AGENT, A NEUTRAL DILUENT, A WETTING AGENT, AND DESIRABLY A DYE OR COLORING ADDITIVE. THE POWDER GELLING COMPOSITION WHEN ADDED TO WATER FORMS A GEL. TO THIS GEL MAY BE ADDID ACID OR ALKALINE MATERIALS FOR CLEANING, BIOCIDAL AGENTS FOR SANITIZING, OR OTHER MATERIALS TO PRODUCE A DESIRED EFFECT. THE SIGNIFICANT ADVANTAGE OF THIS METHOD IS THE INCREASED RESIDENCE TIME AND HENCE CONTACT TIME BETWEEN AGENTS IN THE GEL AND THE SURFACE TO BE ACTED ON.
Inventors
- 👤 Homer E Crotty
- 👤 Charles R Coffey
- 👤 Thomas C Tesdahl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:55
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/48; B; B01; B01J; B01J19/00; B01J19/06; C08; C08L; C08L5/00; C11D1/00; C11D1/02; C11D1/12; C11D1/22; C11D17/00; C11D17/0008; C11D17/003; C11D3/16; C11D3/20; C11D3/22; C11D3/222; C11D3/225; C11D3/395; C11D3/3953; C11D3/3956; C11D3/40; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03; Y10S516/04; Y10S516/05
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |