Granted Patent
Utility
US 4,250,139 · App. 06/008,652
Microwave sterilization of dry protein
Inventors:
Edward E. Luck, John R. Daniels
Patented Case
View Patent ↗
Granted: Feb 10, 1981
Filed: Feb 1, 1979
Inventors
Edward E. Luck
John R. Daniels
Assignee (at issue)
COLLAGEN 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.