Granted Patent
Utility
US 4,850,162 · App. 07/224,103
Access floor system
Inventor:
Raymond E. Albrecht
Patented Case
View Patent ↗
Granted: Jul 25, 1989
Filed: Jul 26, 1988
Inventor
Raymond E. Albrecht
Assignee (at issue)
H. H. Robertson Company
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.