Granted Patent
Utility
US 4,945,701 · App. 07/352,488
Composite concrete floor panel
Inventors:
Jonathan D. Bell, Peter Alfred Blacklin
Patented Case
View Patent ↗
Granted: Aug 7, 1990
Filed: May 16, 1989
Inventors
Jonathan D. Bell
Peter Alfred Blacklin
Assignee (at issue)
TATE ACCESS FLOORS, 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.