Granted Patent
Utility
US 4,475,700 · App. 06/493,021
Tape cassette dust door latch spring assembly
Inventors:
Robert B. MacLeod, Jr., Vincent Landry, Paul J. Gelardi
Patented Case
View Patent ↗
Granted: Oct 9, 1984
Filed: May 9, 1983
Inventors
Robert B. MacLeod, Jr.
Vincent Landry
Paul J. Gelardi
Assignee (at issue)
Shape Corp.
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.