Granted Patent
Utility
US 5,758,389 · App. 08/239,358
Torsion rod assisted hinges
Inventor:
Tiete O. Wolda
Patented Case
View Patent ↗
Granted: Jun 2, 1998
Filed: May 6, 1994
Inventor
Tiete O. Wolda
Assignee (at issue)
M&C Corporation
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.