Granted Patent
Utility
US 6,658,995 · App. 10/403,434
Proofer
Inventors:
Perry R. DeYoung, Vance John Matz
Patented Case
View Patent ↗
Granted: Dec 9, 2003
Filed: Mar 31, 2003
Inventors
Perry R. DeYoung
Vance John Matz
Assignee (at issue)
Oliver Products Company
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.