Granted Patent
Utility
US 4,385,015 · App. 06/329,346
Repair of shatterproof glass
Inventor:
Duan Klettke
Patented Case
View Patent ↗
Granted: May 24, 1983
Filed: Dec 10, 1981
Inventor
Duan Klettke
Assignee (at issue)
Glass Medic, 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.