Granted Patent
Utility
US 5,277,971 · App. 07/887,319
Tamper-evident pressure sensitive facestock labels
Inventors:
Tung-Yao Weng, Carl Douglas Ray
Patented Case
View Patent ↗
Granted: Jan 11, 1994
Filed: May 22, 1992
Inventors
Tung-Yao Weng
Carl Douglas Ray
Assignee (at issue)
Tredegar Industries, 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.