Granted Patent
Utility
US 5,865,433 · App. 08/880,061
Variable mask and universal vacuum drum
Inventor:
Roger J. Morrissette
Patented Case
View Patent ↗
Granted: Feb 2, 1999
Filed: Jun 20, 1997
Inventor
Roger J. Morrissette
Assignee (at issue)
Optronics International, LLC
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.