Granted Patent
Utility
US 4,705,158 · App. 06/948,273
Cup feed apparatus
Inventor:
Enn Sirvet
Patented Case
View Patent ↗
Granted: Nov 10, 1987
Filed: Dec 31, 1986
Inventor
Enn Sirvet
Assignee (at issue)
Sun Chemical 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.