Granted Patent
Utility
US 6,021,644 · App. 09/136,096
Frosting heat-pump dehumidifier with improved defrost
Inventors:
Roland A. Ares, Nes Lakdawala
Patented Case
View Patent ↗
Granted: Feb 8, 2000
Filed: Aug 18, 1998
Inventors
Roland A. Ares
Nes Lakdawala
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.