Granted Patent
Utility
US 4,642,237 · App. 06/726,750
Stable oxidant alpha-amylase concentrates for use in baking
Inventors:
Vincent A. De Stefanis, Robert Erickson, Peter M. Ranum
Patented Case
View Patent ↗
Granted: Feb 10, 1987
Filed: Apr 24, 1985
Inventors
Vincent A. De Stefanis
Robert Erickson
Peter M. Ranum
Assignee (at issue)
Pennwalt Corporation
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.