Granted Patent
Utility
US 4,417,256 · App. 06/360,280
Break-off uniformity maintenance
Inventors:
Gary L. Fillmore, Van Clifton Martin, Gregory Lawrence Ream
Patented Case
View Patent ↗
Granted: Nov 22, 1983
Filed: Mar 22, 1982
Inventors
Gary L. Fillmore
Van Clifton Martin
Gregory Lawrence Ream
Assignee (at issue)
International Business Machines Corporation
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.