Granted Patent
Utility
US 5,580,656 · App. 08/365,549
Process for drying microspheres
Inventor:
George E. Melber
Patented Case
View Patent ↗
Granted: Dec 3, 1996
Filed: Dec 28, 1994
Inventor
George E. Melber
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.