Granted Patent
Utility
US 6,549,649 · App. 09/262,947
Apparatus and method for projecting an alignment image
Inventor:
John A. Penkethman
Patented Case
View Patent ↗
Granted: Apr 15, 2003
Filed: Mar 4, 1999
Inventor
John A. Penkethman
Assignee (at issue)
Electroglas, Inc.
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.