Granted Patent
Utility
US 5,916,928 · App. 08/819,397
Polymer-based porous foam
Inventors:
Robert W. Sessions, Roy D. Carr, Peter E. Morin
Patented Case
View Patent ↗
Granted: Jun 29, 1999
Filed: Jun 5, 1995
Inventors
Robert W. Sessions
Roy D. Carr
Peter E. Morin
Assignee (at issue)
Ferris 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.