Granted Patent
Utility
US 6,595,039 · App. 09/747,186
Method of applying liquid fluorescent dyes to the internal parts of air conditioning or refrigeration systems
Inventor:
Jack Brass
Patented Case
View Patent ↗
Granted: Jul 22, 2003
Filed: Dec 26, 2000
Inventor
Jack Brass
Assignee (at issue)
BRASSCORP LIMITED
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.