Granted Patent
Utility
US 4,822,066 · App. 07/107,305
Strenghtened plastic dolly
Inventor:
Houston Rehrig
Patented Case
View Patent ↗
Granted: Apr 18, 1989
Filed: Oct 13, 1987
Inventor
Houston Rehrig
Assignee (at issue)
Rehrig International, 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.