Granted Patent
Utility
US 6,572,724 · App. 07/848,856
Method for producing an improved seamless bag by heat sealing
Inventors:
Gunther E. Asterlin, H. William Morgan
Patented Case
View Patent ↗
Granted: Jun 3, 2003
Filed: Mar 10, 1992
Inventors
Gunther E. Asterlin
H. William Morgan
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.