Granted Patent
Utility
US 4,684,043 · App. 06/653,297
Shipping seal for viscous product dispenser
Inventors:
Donald D. Foster, Robert N. Hills
Patented Case
View Patent ↗
Granted: Aug 4, 1987
Filed: Sep 24, 1984
Inventors
Donald D. Foster
Robert N. Hills
Assignee (at issue)
Realex 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.