Granted Patent
Utility
US 5,259,894 · App. 07/470,931
Method for solvent bonding non-porous materials to automatically create variable bond characteristics
Inventor:
Richard K. Sampson
Patented Case
View Patent ↗
Granted: Nov 9, 1993
Filed: Jan 26, 1990
Inventor
Richard K. Sampson
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.