Granted Patent
Utility
US 6,012,447 · App. 09/124,446
Heated mixing kettle with dual acting agitators
Inventors:
Thomas Waxler, Russell W. Clark
Patented Case
View Patent ↗
Granted: Jan 11, 2000
Filed: Jul 29, 1998
Inventors
Thomas Waxler
Russell W. Clark
Assignee (at issue)
Stimsonite Corporation
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.