Granted Patent
Utility
US 4,598,621 · App. 06/706,827
Microtome having a handwheel for driving a specimen holder
Inventor:
Helmut Weinhold
Patented Case
View Patent ↗
Granted: Jul 8, 1986
Filed: Feb 28, 1985
Inventor
Helmut Weinhold
Assignee (at issue)
Parke, Davis & Company
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.