Granted Patent
Utility
US 5,262,237 · App. 07/694,672
Rubber-based primer for room temperature repair of rubber gaskets
Inventors:
Chia-Hung Chen, Jeffrey T. Fields
Patented Case
View Patent ↗
Granted: Nov 16, 1993
Filed: May 2, 1991
Inventors
Chia-Hung Chen
Jeffrey T. Fields
Assignee (at issue)
Ashland Oil, 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.