Granted Patent
Utility
US 6,609,999 · App. 09/934,417
Perforation blade for forming a burst-resistant easy-open corner in a heavy duty bag
Inventor:
Timothy L. Albright
Patented Case
View Patent ↗
Granted: Aug 26, 2003
Filed: Aug 21, 2001
Inventor
Timothy L. Albright
Assignee (at issue)
Rex International 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.