Granted Patent
Utility
US 6,178,852 · App. 09/199,833
Rotary die laser machining and hardening apparatus and method
Inventor:
Alan R. Pfaff, Jr.
Patented Case
View Patent ↗
Granted: Jan 30, 2001
Filed: Nov 25, 1998
Inventor
Alan R. Pfaff, Jr.
Assignee (at issue)
Atlantic Commerce Properties
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.