Granted Patent
Utility
US 6,538,230 · App. 09/860,133
Method and apparatus for improving laser hole resolution
Inventor:
William E. Lawson
Patented Case
View Patent ↗
Granted: Mar 25, 2003
Filed: May 17, 2001
Inventor
William E. Lawson
Assignee (at issue)
Preco Laser Systems, LLC
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.