Granted Patent
Utility
US 5,338,318 · App. 07/952,368
Method for dyeing polyethylene terephthalate films
Inventor:
Emilio A. Mercado
Patented Case
View Patent ↗
Granted: Aug 16, 1994
Filed: Sep 28, 1992
Inventor
Emilio A. Mercado
Assignee (at issue)
Acquired Technolgy, 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.