Granted Patent
Utility
US 4,897,030 · App. 07/234,665
Apparatus for lengthwise folding thermoplastic strip material
Inventor:
Thomas L. Vajtay
Patented Case
View Patent ↗
Granted: Jan 30, 1990
Filed: Aug 22, 1988
Inventor
Thomas L. Vajtay
Assignee (at issue)
SLM Manufacturing Corp.
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.