Granted Patent
Utility
US 6,545,671 · App. 09/517,522
Rotating element sheet material with reversible highlighting
Inventor:
Alexander E. Silverman
Patented Case
View Patent ↗
Granted: Apr 8, 2003
Filed: Mar 2, 2000
Inventor
Alexander E. Silverman
Assignee (at issue)
Xerox 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.