Granted Patent
Utility
US 4,733,927 · App. 06/671,523
Stress waveguides in bulk crystalline materials
Inventors:
Deborah J. Jackson, Marion D. Clark
Patented Case
View Patent ↗
Granted: Mar 29, 1988
Filed: Nov 14, 1984
Inventors
Deborah J. Jackson
Marion D. Clark
Assignee (at issue)
Hughes Aircraft Company
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.