Granted Patent
Utility
US 5,145,742 · App. 07/563,024
Polymer pellet configuration for solid-state polymerization
Inventor:
Cheuk C. Yau
Patented Case
View Patent ↗
Granted: Sep 8, 1992
Filed: Aug 3, 1990
Inventor
Cheuk C. Yau
Assignee (at issue)
EASTMAN KODAK 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.