Granted Patent
Utility
US 4,518,705 · App. 06/425,442
Three layer laminate
Inventors:
Frank Solomon, Charles Grun
Patented Case
View Patent ↗
Granted: May 21, 1985
Filed: Sep 28, 1982
Inventors
Frank Solomon
Charles Grun
Assignee (at issue)
Eltech Systems 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.