Granted Patent
Utility
US 6,250,850 · App. 09/377,094
Block with multifaceted bottom surface
Inventors:
Gerald P. Price, Raymond R. Price
Patented Case
View Patent ↗
Granted: Jun 26, 2001
Filed: Aug 19, 1999
Inventors
Gerald P. Price
Raymond R. Price
Assignee (at issue)
Rockwood Retaining Walls, 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.