Granted Patent
Utility
US 6,262,148 · App. 09/334,085
Phenalkamine curing agents and epoxy resin compositions containing the same
Inventors:
Chi-Wen Cheng, David J. Bender, Hsing Tie Wang
Patented Case
View Patent ↗
Granted: Jul 17, 2001
Filed: Jun 16, 1999
Inventors
Chi-Wen Cheng
David J. Bender
Hsing Tie Wang
Assignee (at issue)
Vantico 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.