Granted Patent
Utility
US 5,595,668 · App. 08/417,092
Laser slag removal
Inventors:
Jean D. Madden, Jr., Christopher H. Knapp
Patented Case
View Patent ↗
Granted: Jan 21, 1997
Filed: Apr 5, 1995
Inventors
Jean D. Madden, Jr.
Christopher H. Knapp
Assignee (at issue)
Electro-Films Incorporated
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.