Granted Patent
Utility
US 5,147,272 · App. 07/742,401
Method of making a vented pouch
Inventors:
Cecil Richison, Gary M. Bell
Patented Case
View Patent ↗
Granted: Sep 15, 1992
Filed: Aug 8, 1991
Inventors
Cecil Richison
Gary M. Bell
Assignee (at issue)
Kapak 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.