Granted Patent
Utility
US 5,035,852 · App. 07/376,771
Tapered leaf support pin for operating plant guide tubes
Inventors:
John T. Land, Ronald J. Hopkins, Daniel E. Ford
Patented Case
View Patent ↗
Granted: Jul 30, 1991
Filed: Jul 7, 1989
Inventors
John T. Land
Ronald J. Hopkins
Daniel E. Ford
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.