Granted Patent
Utility
US 4,214,541 · App. 05/865,731
Method for manufacturing pillowcases
Inventors:
George E. Zeigler, Jr., Charles B. Sumpter, Jr., Carl A. Wortham
Patented Case
View Patent ↗
Granted: Jul 29, 1980
Filed: Dec 29, 1977
Inventors
George E. Zeigler, Jr.
Charles B. Sumpter, Jr.
Carl A. Wortham
Assignee (at issue)
Fieldcrest Mills, Inc.
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.