Granted Patent
Utility
US 4,951,763 · App. 07/434,332
Checkweigher
Inventors:
Scott E. Zimmerman, Alex J. Specker
Patented Case
View Patent ↗
Granted: Aug 28, 1990
Filed: Nov 13, 1989
Inventors
Scott E. Zimmerman
Alex J. Specker
Assignee (at issue)
Hi-Speed Checkweigher Co., Inc.
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.