Granted Patent
Utility
US 5,425,977 · App. 08/181,723
Rough-surfaced interlayer
Inventor:
Harold H. Hopfe
Patented Case
View Patent ↗
Granted: Jun 20, 1995
Filed: Jan 18, 1994
Inventor
Harold H. Hopfe
Assignee (at issue)
Monsanto Company
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.