Granted Patent
Utility
US 4,784,873 · App. 06/605,614
Method of producing biological specimens
Inventors:
Wilhelm Kienecker, Klaus Uhlmann
Patented Case
View Patent ↗
Granted: Nov 15, 1988
Filed: Apr 30, 1984
Inventors
Wilhelm Kienecker
Klaus Uhlmann
Assignee (at issue)
Arthur Pfeiffer Vakummtechnik Wetzlar GmbH
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.