Granted Patent
Utility
US 5,879,490 · App. 08/891,890
Method of fabricating canister with porous plastic ends
Inventor:
Lora L. Berger
Patented Case
View Patent ↗
Granted: Mar 9, 1999
Filed: Jul 14, 1997
Inventor
Lora L. Berger
Assignee (at issue)
Multisorb Technologies, 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.