Granted Patent
Utility
US 4,828,556 · App. 06/925,332
Breathable, multilayered, clothlike barrier
Inventors:
Ralph V. Braun, Lance Garrett, Robert J. Phelan, Richard S. Yeo
Patented Case
View Patent ↗
Granted: May 9, 1989
Filed: Oct 31, 1986
Inventors
Ralph V. Braun
Lance Garrett
Robert J. Phelan
Richard S. Yeo
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.