Granted Patent
Utility
US 5,328,367 · App. 08/048,432
Method and apparatus for applying gutta percha to a carrier
Inventor:
William B. Johnson
Patented Case
View Patent ↗
Granted: Jul 12, 1994
Filed: Apr 14, 1993
Inventor
William B. Johnson
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.