Granted Patent
Utility
US 4,836,314 · App. 07/216,812
Novel glass elements for use in balances
Inventors:
Georg Rupprecht, Harvey Patashnick
Patented Case
View Patent ↗
Granted: Jun 6, 1989
Filed: Jul 8, 1988
Inventors
Georg Rupprecht
Harvey Patashnick
Assignee (at issue)
Rupprecht & Patashnick Company, 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.