Granted Patent
Utility
US 6,769,663 · App. 09/989,223
Void forming and anchor positioning apparatus and method for concrete structures
Inventors:
David L. Kelly, Stephen L. Miller, Richard L. Miller
Patented Case
View Patent ↗
Granted: Aug 3, 2004
Filed: Nov 20, 2001
Inventors
David L. Kelly
Stephen L. Miller
Richard L. Miller
Assignee (at issue)
Meadow Burke Products
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.