Granted Patent
Utility
US 5,246,972 · App. 07/506,032
Polish containing highly adsorptive polymer
Inventors:
Martin E. Cifuentes, Kenneth A. Kasprzak, Janet Mary Smith
Patented Case
View Patent ↗
Granted: Sep 21, 1993
Filed: Apr 6, 1990
Inventors
Martin E. Cifuentes
Kenneth A. Kasprzak
Janet Mary Smith
Assignee (at issue)
Dow Corning Corporation
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.