Granted Patent
Utility
US 6,499,599 · App. 09/713,123
Expandable packing end cap
Inventors:
Timothy J. Hopkins, Robert S. Biddinger
Patented Case
View Patent ↗
Granted: Dec 31, 2002
Filed: Nov 14, 2000
Inventors
Timothy J. Hopkins
Robert S. Biddinger
Assignee (at issue)
Tuscarora 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.