Granted Patent
Utility
US 5,387,050 · App. 07/821,671
Extruded ethylenic polymer foam containing both open and closed cells
Inventors:
Edward E. Hovis, Eric Johnson, Michael Schroeder
Patented Case
View Patent ↗
Granted: Feb 7, 1995
Filed: Jan 16, 1992
Inventors
Edward E. Hovis
Eric Johnson
Michael Schroeder
Assignee (at issue)
Nomaco 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.