Granted Patent
Utility
US 4,354,987 · App. 06/249,443
Consolidation of high purity silicon powder
Inventor:
Sridhar K. Iya
Patented Case
View Patent ↗
Granted: Oct 19, 1982
Filed: Mar 31, 1981
Inventor
Sridhar K. Iya
Assignee (at issue)
Union Carbide 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.