Granted Patent
Utility
US 4,449,436 · App. 06/357,736
Sheet punch device
Inventors:
Joseph K. Semerjian, Glenn R. Lodge
Patented Case
View Patent ↗
Granted: May 22, 1984
Filed: Mar 12, 1982
Inventors
Joseph K. Semerjian
Glenn R. Lodge
Assignee (at issue)
Wilson Jones 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.