Granted Patent
Utility
US 5,874,151 · App. 08/832,157
Rigidifiable plastic composites and manufacturing methods therefor
Inventors:
Donald R. Cohee, Edgar G. Ashmead
Patented Case
View Patent ↗
Granted: Feb 23, 1999
Filed: Apr 2, 1997
Inventors
Donald R. Cohee
Edgar G. Ashmead
Assignee (at issue)
ILC Dover LP
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.