Granted Patent
Utility
US 5,164,055 · App. 07/472,045
High-viscosity polymer matrix and methods
Inventor:
Robert S. Dubrow
Patented Case
View Patent ↗
Granted: Nov 17, 1992
Filed: Jan 29, 1990
Inventor
Robert S. Dubrow
Assignee (at issue)
APPLIED BIOSYSTEMS, LLC
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.