Granted Patent
Utility
US 6,102,556 · App. 09/063,710
Detachable light filter holder
Inventors:
Larry Lieberman, John Charles Fuller
Patented Case
View Patent ↗
Granted: Aug 15, 2000
Filed: Apr 21, 1998
Inventors
Larry Lieberman
John Charles Fuller
Assignee (at issue)
Panavision, 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.