Granted Patent
Utility
US 4,829,293 · App. 07/731,413
Method and apparatus for achieving variable and infinite persistence
Inventor:
Rodney T. Schlater
Patented Case
View Patent ↗
Granted: May 9, 1989
Filed: May 6, 1985
Inventor
Rodney T. Schlater
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.