Granted Patent
Utility
US 4,609,182 · App. 06/653,506
Device for tensioning and aligning a fabric
Inventor:
Johannes Freermann
Patented Case
View Patent ↗
Granted: Sep 2, 1986
Filed: Sep 21, 1984
Inventor
Johannes Freermann
Assignee (at issue)
Carl Schmale GmbH & Co.
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.