Granted Patent
Utility
US 4,343,866 · App. 05/735,643
Deeply embossed sheet product
Inventors:
Nathan Oser, Edmund Niedzinski
Patented Case
View Patent ↗
Granted: Aug 10, 1982
Filed: Oct 26, 1976
Inventors
Nathan Oser
Edmund Niedzinski
Assignee (at issue)
Manville Service Corporation
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.