Granted Patent
Utility
US 6,779,656 · App. 10/169,911
Polymerizable preparations based on epoxides that contain silicon
Inventors:
Thomas Klettke, Wolfgang Weinmann
Patented Case
View Patent ↗
Granted: Aug 24, 2004
Filed: Jul 11, 2002
Inventors
Thomas Klettke
Wolfgang Weinmann
Assignee (at issue)
3M ESPE AG
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.