Granted Patent
Utility
US 4,411,115 · App. 06/272,276
Spacer frames for multi-pane glazing units
Inventors:
Taieb Marzouki, Bernd Schweisser
Patented Case
View Patent ↗
Granted: Oct 25, 1983
Filed: Jun 10, 1981
Inventors
Taieb Marzouki
Bernd Schweisser
Assignee (at issue)
USM Holding AG
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.