Granted Patent
Utility
US 5,365,788 · App. 07/950,631
Random vibration generating apparatus
Inventor:
Gregg K. Hobbs
Patented Case
View Patent ↗
Granted: Nov 22, 1994
Filed: Aug 27, 1992
Inventor
Gregg K. Hobbs
Assignee (at issue)
Qualmark 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.