Granted Patent
Utility
US 4,835,924 · App. 06/942,704
Self-gridding flooring system
Inventors:
Peter Alfred Blacklin, Jonathan D. Bell
Patented Case
View Patent ↗
Granted: Jun 6, 1989
Filed: Dec 17, 1986
Inventors
Peter Alfred Blacklin
Jonathan D. Bell
Assignee (at issue)
Tate Acess Floors
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.