Granted Patent
Utility
US 4,804,231 · App. 06/747,604
Point attack mine and road milling tool with replaceable cutter tip
Inventors:
Sergej-Tomislav Buljan, Vinod K. Sarin
Patented Case
View Patent ↗
Granted: Feb 14, 1989
Filed: Jun 24, 1985
Inventors
Sergej-Tomislav Buljan
Vinod K. Sarin
Assignee (at issue)
GTE Laboratories Incorporated
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.