Granted Patent
Utility
US 4,622,345 · App. 06/858,333
Anti-static styrene polymer particles
Inventors:
Haven S. Kesling, Jr., James Jeffrey Harris
Patented Case
View Patent ↗
Granted: Nov 11, 1986
Filed: May 1, 1986
Inventors
Haven S. Kesling, Jr.
James Jeffrey Harris
Assignee (at issue)
Atlantic Richfield 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.