Granted Patent
Utility
US 5,481,440 · App. 08/173,594
Circuit pack with light pipes
Inventors:
Michael L. Oldham, Gerald Buxton
Patented Case
View Patent ↗
Granted: Jan 2, 1996
Filed: Dec 27, 1993
Inventors
Michael L. Oldham
Gerald Buxton
Assignee (at issue)
AT&T CORP.
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.