Granted Patent
Utility
US 4,923,914 · App. 07/181,359
Surface-segregatable, melt-extrudable thermoplastic composition
Inventors:
Ronald Sinclair Nohr, J. Gavin MacDonald
Patented Case
View Patent ↗
Granted: May 8, 1990
Filed: Apr 14, 1988
Inventors
Ronald Sinclair Nohr
J. Gavin MacDonald
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.