Granted Patent
Utility
US 5,407,481 · App. 08/049,932
Flowable, pressure-compensating materials
Inventor:
Terrence M. Drew
Patented Case
View Patent ↗
Granted: Apr 18, 1995
Filed: Apr 20, 1993
Inventor
Terrence M. Drew
Assignee (at issue)
Alden Laboratories, 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.