Granted Patent
Utility
US 5,913,613 · App. 08/932,556
Cover operation system
Inventors:
Kelly Ragsdale, Richard Clark, Cory Brady
Patented Case
View Patent ↗
Granted: Jun 22, 1999
Filed: Sep 19, 1997
Inventors
Kelly Ragsdale
Richard Clark
Cory Brady
Assignee (at issue)
COVER-POOLS INCORPORATED
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.