Granted Patent
Utility
US 5,687,440 · App. 08/558,889
Washing method capable of preventing the formation of suds in a washing machine
Inventors:
Tae-Sik Min, Seung-Jun Lee, Chung-Sik Jung
Patented Case
View Patent ↗
Granted: Nov 18, 1997
Filed: Nov 16, 1995
Inventors
Tae-Sik Min
Seung-Jun Lee
Chung-Sik Jung
Assignee (at issue)
Daewoo Electronics 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.