Granted Patent
Utility
US 5,066,528 · App. 07/488,247
Refillable polyester container and preform for forming the same
Inventors:
Suppayan M. Krishnakumar, Wayne N. Collette, Thomas E. Nahill
Patented Case
View Patent ↗
Granted: Nov 19, 1991
Filed: Mar 5, 1990
Inventors
Suppayan M. Krishnakumar
Wayne N. Collette
Thomas E. Nahill
Assignee (at issue)
Continental PET Technologies, Inc.
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.