Granted Patent
Utility
US 4,438,847 · App. 06/471,311
Film carrier for an electrical conductive pattern
Inventor:
Otmar Fritz
Patented Case
View Patent ↗
Granted: Mar 27, 1984
Filed: Mar 2, 1983
Inventor
Otmar Fritz
Assignee (at issue)
Siemens Aktiengesellschaft
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.