Granted Patent
Utility
US 4,700,600 · App. 06/834,351
Microtome disposable blade apparatus
Inventor:
John E. P. Pickett
Patented Case
View Patent ↗
Granted: Oct 20, 1987
Filed: Feb 28, 1986
Inventor
John E. P. Pickett
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.