Granted Patent
Utility
US 6,810,714 · App. 10/348,265
Device for refrigerant leak sealant additive detection
Inventor:
J. Douglas Anderson
Patented Case
View Patent ↗
Granted: Nov 2, 2004
Filed: Jan 21, 2003
Inventor
J. Douglas Anderson
Assignee (at issue)
Neutronics 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.