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Publication numberUST903009 I4
Publication typeGrant
Publication dateOct 3, 1972
Filing dateSep 22, -29
Publication numberUS T903009 I4, US T903009I4, US-I4-T903009, UST903009 I4, UST903009I4
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Defensive publication
US T903009 I4
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Description  (OCR text may contain errors)

UNITED STATES PATENT OFFICE Published at the request of the applicant or owner in accordance with the Notice of Dec. 16, 1969, 869 0.6. 687. The abstracts of Defensive Publication applications are identified by distinctly numbered series and are arranged chronologically. The heading of each abstract indicates the number of pages of specification, including claims and sheets of drawings contained in the application as originally filed. The files of these applications are available to the public for inspection and reproduction may be purchased for 30 cents a sheet.

Detensive Publication applications have not been examined as to the merits of alleged invention. The Patent Ofllce makes no assertion as to the novelty of the disclosed subject matter.

PUBLISHED OCTOBER 3, 1972 T903,009 PHOSPHO'RUS-FREE CLEANING FOATIONS Richard D. Katstra, Englewood Clifls, N.J., assignor to Continental Oil Company, Ponca City, Okla. Filed Sept. 22, 1971, Ser. No. 182,863 Int. Cl. Clld 1/12 US. Cl. 252-559 No Drawing. 17 Pages Specification Phosphorus-free cleaning formulations containing only surface active materials. The surface active materials used include a major proportion of a nonionic surfactant and a lesser amount of an alkyl aryl sulfona'te salt.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5503778 *Nov 30, 1994Apr 2, 1996Minnesota Mining And Manufacturing CompanyCleaning compositions based on N-alkyl pyrrolidones having about 8 to about 12 carbon atoms in the alkyl group and corresponding methods of use
US5744440 *Feb 6, 1996Apr 28, 1998Minnesota Mining And Manufacturing CompanyHard surface cleaning compositions including a very slightly water-soluble organic solvent
US5922665 *May 28, 1997Jul 13, 1999Minnesota Mining And Manufacturing CompanyComprising a nonionic surfactant, a very slightly water soluble organic solvent, water and optional additives