Granted Patent
Utility
US 5,915,817 · App. 09/083,582
Process for drying particulate matter
Inventor:
Peter E. Zagorzycki
Patented Case
View Patent ↗
Granted: Jun 29, 1999
Filed: May 21, 1998
Inventor
Peter E. Zagorzycki
Assignee (at issue)
Wolverine (Massachusetts) Corporation Proctor & Schwartz Division
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.