Granted Patent
Utility
US 4,974,036 · App. 07/323,402
Semiconductor superlattice heterostructures on nonplanar substrates
Inventor:
Elyahou Kapon
Patented Case
View Patent ↗
Granted: Nov 27, 1990
Filed: Mar 14, 1989
Inventor
Elyahou Kapon
Assignee (at issue)
Bell Communications Research, 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.