Granted Patent
Utility
US 5,693,405 · App. 08/372,321
Masking film having embossed areas and unembossed areas
Inventors:
William Harvie, Tung-Yao Weng
Patented Case
View Patent ↗
Granted: Dec 2, 1997
Filed: Jan 13, 1995
Inventors
William Harvie
Tung-Yao Weng
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.