Granted Patent
Utility
US 5,342,889 · App. 07/729,865
Chain extended low molecular weight polyoxiranes for electrostatic applications
Inventors:
Francis R. Sullivan, Elaine A. Mertzel, Edmond G. Kolycheck
Patented Case
View Patent ↗
Granted: Aug 30, 1994
Filed: Jul 10, 1991
Inventors
Francis R. Sullivan
Elaine A. Mertzel
Edmond G. Kolycheck
Assignee (at issue)
B. F. Goodrich 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.