Granted Patent
Utility
US 4,810,571 · App. 07/087,476
Synthetic sheet composite
Inventor:
David W. Guthrie
Patented Case
View Patent ↗
Granted: Mar 7, 1989
Filed: Aug 20, 1987
Inventor
David W. Guthrie
Assignee (at issue)
Kimberly-Clark 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.