Granted Patent
Utility
US 5,173,097 · App. 07/634,862
Process for the manufacture of objects with small complex cross-sections
Inventor:
Klaus Jansen
Patented Case
View Patent ↗
Granted: Dec 22, 1992
Filed: Jan 2, 1991
Inventor
Klaus Jansen
Assignee (at issue)
NATIONAL RESEARCH DEVELOPMENT 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.