Granted Patent
Utility
US 4,226,232 · App. 06/028,610
Wound dressing
Inventor:
Wayman R. Spence
Patented Case
View Patent ↗
Granted: Oct 7, 1980
Filed: Apr 9, 1979
Inventor
Wayman R. Spence
Assignee (at issue)
Spenco Medical 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.