Granted Patent
Utility
US 5,239,135 · App. 07/835,376
Circuit board fastener
Inventor:
Ronald W. Phillips, II
Patented Case
View Patent ↗
Granted: Aug 24, 1993
Filed: Feb 14, 1992
Inventor
Ronald W. Phillips, II
Assignee (at issue)
Penn Engineering & Manufacturing 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.