Granted Patent
Utility
US 5,335,405 · App. 08/069,657
Method and apparatus for aligning phototools for photoprocessing of printed circuit boards
Inventors:
Hans H. Ammann, Richard F. Kovacs, Henry B. Micks, Jr., Jamey N. Potechin, Everett Simons, John G. Tetz
Patented Case
View Patent ↗
Granted: Aug 9, 1994
Filed: Jun 1, 1993
Inventors
Hans H. Ammann
Richard F. Kovacs
Henry B. Micks, Jr.
Jamey N. Potechin
Everett Simons
John G. Tetz
Assignee (at issue)
AT&T Bell Laboratories
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.