Granted Patent
Utility
US 4,295,251 · App. 06/130,631
Method for controlling edge uniformity in nonwoven fabrics
Inventors:
Jack R. Tatham, Jerry L. Shelor
Patented Case
View Patent ↗
Granted: Oct 20, 1981
Filed: Mar 14, 1980
Inventors
Jack R. Tatham
Jerry L. Shelor
Assignee (at issue)
Phillips Petroleum Company
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.