Granted Patent
Utility
US 5,253,705 · App. 07/865,904
Hostile environment packer system
Inventors:
Sammy R. Clary, Michael R. Hutto, Tommy L. Stambaugh
Patented Case
View Patent ↗
Granted: Oct 19, 1993
Filed: Apr 9, 1992
Inventors
Sammy R. Clary
Michael R. Hutto
Tommy L. Stambaugh
Assignee (at issue)
Otis Engineering Corporation
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.