US3755184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cleaning teflon-coated cookware
Assignee: ECONIMICS LABOR Inc
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Filing: 1971-06-18
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Granted: 1973-08-28
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Expires: 1991-06-18
Abstract
Abstract Teflon-coated cookware is cleaned with a cleansing agent containing a lower chlorocarbon (e.g., trichloroethylene) , preferably in admixture with a thickening agent (e.g., aluminum stearate) and a cooking oil.
Inventors
- 👤 W Mizuno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:08
CPC Classifications
C; C11; C11D; C11D9/00; C11D9/002; C11D7/00; C11D7/22; C11D7/40; C11D7/44
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
34 words
A cookWare cleaning composition consisting essentially of: a. about 90 parts by volume of trichloroethylene, b. about 1.5 parts by weight of aluminum stearate, and c. about 10 parts by volume of corn oil.
Claim 2
Independent Claim
55 words
A method for removing cooking residues from Teflon-coated cookware and seasoning the Teflon coating comprising the step of: contacting the Teflon coating with a liquid composition consisting essentially of at least one lower chlorocarbon and at least one edible cooking oil, said composition being thickened with a viscosity-increasing amount of at least one thickening agent.
Claim 3
Dependent Claim
18 words
A method according to claim 3, wherein the thickened composition consists essentially of trichloroethylene and a vegetable oil.
Claim 4
Dependent Claim
33 words
A composition according to claim 1 wherein said chlorocarbon is selected from the group consisting of trichloroethylene, tetrachloroethylene, tetrachloroethane, trichloroethane, methylene chloride, and mixtures thereof, and wherein said thickening agent is aluminum stearate.
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) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |