Granted Patent
Utility
US 4,509,647 · App. 06/404,452
Unitary construction circuit pack carrier
Inventor:
George J. Shevchuk
Patented Case
View Patent ↗
Granted: Apr 9, 1985
Filed: Aug 2, 1982
Inventor
George J. Shevchuk
Assignee (at issue)
Bell Telephone Laboratories, 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.