Granted Patent
Utility
US 5,588,263 · App. 08/309,808
Double adaptor bar for single inserts used in casting concrete
Inventors:
David L. Kelly, Sidney E. Francies, III
Patented Case
View Patent ↗
Granted: Dec 31, 1996
Filed: Sep 21, 1994
Inventors
David L. Kelly
Sidney E. Francies, III
Assignee (at issue)
HEM Trading
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.