Granted Patent
Utility
US 6,742,569 · App. 10/080,242
Hot melt application of solid plunger lubricant
Inventor:
Dean B. Edwards
Patented Case
View Patent ↗
Granted: Jun 1, 2004
Filed: Feb 21, 2002
Inventor
Dean B. Edwards
Assignee (at issue)
Chem-Trend Limited Partnership
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.