Granted Patent
Utility
US 4,595,578 · App. 06/714,799
Stabilized silica gel and process for making same
Inventors:
Howard J. Cohen, Peter van der Heem, Steven J. Fitch
Patented Case
View Patent ↗
Granted: Jun 17, 1986
Filed: Mar 22, 1985
Inventors
Howard J. Cohen
Peter van der Heem
Steven J. Fitch
Assignee (at issue)
SCM Consultants, 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.