Granted Patent
Utility
US 4,495,886 · App. 06/536,021
Precision roll coater
Inventor:
Richard W. Phelps
Patented Case
View Patent ↗
Granted: Jan 29, 1985
Filed: Sep 26, 1983
Inventor
Richard W. Phelps
Assignee (at issue)
Black Clawson Company, 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.