Granted Patent
Utility
US 5,830,544 · App. 08/609,580
Non-sticky polyester bottles
Inventors:
Frederick C. Kerscher, Charles L. Kern
Patented Case
View Patent ↗
Granted: Nov 3, 1998
Filed: Mar 1, 1996
Inventors
Frederick C. Kerscher
Charles L. Kern
Assignee (at issue)
SHELL OIL COMPANY
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.