Granted Patent
Utility
US 5,056,296 · App. 07/502,558
Iso-thermal seal process for electronic devices
Inventors:
Richard J. Ross, Jerry E. Campbell
Patented Case
View Patent ↗
Granted: Oct 15, 1991
Filed: Mar 30, 1990
Inventors
Richard J. Ross
Jerry E. Campbell
Assignee (at issue)
RJR Polymers, 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.