Granted Patent
Utility
US 4,343,921 · App. 06/090,513
Adhesive composition
Inventor:
Gerhard Piestert
Patented Case
View Patent ↗
Granted: Aug 10, 1982
Filed: Nov 2, 1979
Inventor
Gerhard Piestert
Assignee (at issue)
USM Holding AG
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.