Granted Patent
Utility
US 5,648,036 · App. 08/532,864
Device and process for producing the corners of sealing frames
Inventors:
Siegfried Glang, Werner Grabe, Holger Gutschmidt, Jurgen Ludemann
Patented Case
View Patent ↗
Granted: Jul 15, 1997
Filed: Sep 22, 1995
Inventors
Siegfried Glang
Werner Grabe
Holger Gutschmidt
Jurgen Ludemann
Assignee (at issue)
Phoenix, LLC
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.