Granted Patent
Utility
US 6,099,081 · App. 09/137,204
Point attack tooling system for mineral winning
Inventors:
John Joseph Warren, William Stephen Clapham
Patented Case
View Patent ↗
Granted: Aug 8, 2000
Filed: Aug 20, 1998
Inventors
John Joseph Warren
William Stephen Clapham
Assignee (at issue)
Hydra Tools International Limited
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.