Granted Patent
Utility
US 4,819,246 · App. 07/172,262
Single frequency adapter
Inventors:
Marc F. Aiello, John J. Grazulis
Patented Case
View Patent ↗
Granted: Apr 4, 1989
Filed: Mar 23, 1988
Inventors
Marc F. Aiello
John J. Grazulis
Assignee (at issue)
Aerotech, 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.