Granted Patent
Utility
US 4,770,846 · App. 06/576,645
Replacement support pin for guide tubes in operating plants
Inventors:
John T. Land, Ronald J. Hopkins, Jose Martinez
Patented Case
View Patent ↗
Granted: Sep 13, 1988
Filed: Feb 3, 1984
Inventors
John T. Land
Ronald J. Hopkins
Jose Martinez
Assignee (at issue)
Westinghouse Electric Company LLC
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.