Granted Patent
Utility
US 5,884,493 · App. 08/794,575
Method and device for obtaining reserve time for a cooling system
Inventors:
Anders Karstrom, Lennart Stahl
Patented Case
View Patent ↗
Granted: Mar 23, 1999
Filed: Feb 3, 1997
Inventors
Anders Karstrom
Lennart Stahl
Assignee (at issue)
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
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.