Granted Patent
Utility
US 5,258,491 · App. 07/941,282
Process for preparation of a polyetherketone
Inventors:
Victor H. Agreda, Eddie Eckart, Tim J. Frederick, J. Adrian Hawkins
Patented Case
View Patent ↗
Granted: Nov 2, 1993
Filed: Sep 4, 1992
Inventors
Victor H. Agreda
Eddie Eckart
Tim J. Frederick
J. Adrian Hawkins
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.