Granted Patent
Utility
US 4,384,894 · App. 06/316,855
Composition and process for modifying gelation of alkali metal silicates
Inventors:
Thomas M. Vickers, Jr., Larry J. Powers
Patented Case
View Patent ↗
Granted: May 24, 1983
Filed: Oct 30, 1981
Inventors
Thomas M. Vickers, Jr.
Larry J. Powers
Assignee (at issue)
Diamond Shamrock Corporation
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.