Granted Patent
Utility
US 6,318,097 · App. 09/618,517
Method for monitoring the refrigerant level in an air conditioner
Inventor:
Herbert Wieszt
Patented Case
View Patent ↗
Granted: Nov 20, 2001
Filed: Jul 18, 2000
Inventor
Herbert Wieszt
Assignee (at issue)
Daimlerchrysler AG
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.