Granted Patent
Utility
US 5,374,387 · App. 08/010,126
Process for processing elastomeric compositions
Inventors:
Roger P. Barnes, Jonathan A. Johnston
Patented Case
View Patent ↗
Granted: Dec 20, 1994
Filed: Jan 29, 1993
Inventors
Roger P. Barnes
Jonathan A. Johnston
Assignee (at issue)
The Gates Rubber 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.