Granted Patent
Utility
US 5,735,358 · App. 08/660,630
Indexing percussive drilling bit
Inventor:
Leland H. Lyon
Patented Case
View Patent ↗
Granted: Apr 7, 1998
Filed: Jun 6, 1996
Inventor
Leland H. Lyon
Assignee (at issue)
Ingersoll-Rand 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.