Granted Patent
Utility
US 6,264,756 · App. 09/599,046
Method and apparatus for cleansing the internal rollers of a computer pointer device
Inventor:
Mark A. Boys
Patented Case
View Patent ↗
Granted: Jul 24, 2001
Filed: Jun 21, 2000
Inventor
Mark A. Boys
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.