Granted Patent
Utility
US 6,514,458 · App. 09/513,770
Method for removing microbes from surfaces
Inventors:
Melvin H. Czechowski, Wilson K. Whitekettle
Patented Case
View Patent ↗
Granted: Feb 4, 2003
Filed: Feb 25, 2000
Inventors
Melvin H. Czechowski
Wilson K. Whitekettle
Assignee (at issue)
GE Betz, Inc.
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.