Granted Patent
Utility
US 6,735,918 · App. 10/223,387
Plastic slab bolster upper
Inventors:
Dale Haslem, Kenneth Lee, Scott Shaw
Patented Case
View Patent ↗
Granted: May 18, 2004
Filed: Aug 19, 2002
Inventors
Dale Haslem
Kenneth Lee
Scott Shaw
Assignee (at issue)
Aztec Concrete Accessories, 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.