Granted Patent
Utility
US 5,507,902 · App. 08/263,481
Multi-layered sheet
Inventors:
Daniel M. Wyner, Steven I. Wolkenbreit
Patented Case
View Patent ↗
Granted: Apr 16, 1996
Filed: Jun 21, 1994
Inventors
Daniel M. Wyner
Steven I. Wolkenbreit
Assignee (at issue)
R. H. Wyner Associates, 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.