Granted Patent
Utility
US 4,390,336 · App. 06/351,795
Apparatus for air laid fiberglass mat
Inventor:
B. Randall Ziegler
Patented Case
View Patent ↗
Granted: Jun 28, 1983
Filed: Feb 24, 1982
Inventor
B. Randall Ziegler
Assignee (at issue)
GAF 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.