Granted Patent
Utility
US 4,836,971 · App. 06/925,587
Method for manufacturing heat resistant PET containers
Inventors:
Gerard Denis, Jean-Michel Rius
Patented Case
View Patent ↗
Granted: Jun 6, 1989
Filed: Oct 31, 1986
Inventors
Gerard Denis
Jean-Michel Rius
Assignee (at issue)
Sidel
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.