Granted Patent
Utility
US 5,183,707 · App. 07/596,605
Individualized, polycarboxylic acid crosslinked fibers
Inventors:
Carlisle M. Herron, David J. Cooper
Patented Case
View Patent ↗
Granted: Feb 2, 1993
Filed: Oct 17, 1990
Inventors
Carlisle M. Herron
David J. Cooper
Assignee (at issue)
The Procter & Gamble Cellulose 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.