Granted Patent
Utility
US 4,905,428 · App. 07/271,920
Partition structures and frame elements therefor
Inventor:
Christopher C. Sykes
Patented Case
View Patent ↗
Granted: Mar 6, 1990
Filed: Nov 16, 1988
Inventor
Christopher C. Sykes
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.