Granted Patent
Utility
US 6,649,729 · App. 09/554,811
Novolaks as water-unaffected accelerators for epoxy resin hardeners
Inventors:
Wolfgang Scherzer, Jorg Volle
Patented Case
View Patent ↗
Granted: Nov 18, 2003
Filed: May 19, 2000
Inventors
Wolfgang Scherzer
Jorg Volle
Assignee (at issue)
Vantico GmbH & Co. KG
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.