Granted Patent
Utility
US 5,271,888 · App. 07/833,480
Ceramic log moulding process
Inventor:
Wayne Sinsley
Patented Case
View Patent ↗
Granted: Dec 21, 1993
Filed: Feb 10, 1992
Inventor
Wayne Sinsley
Assignee (at issue)
Specialty Management Group, 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.