Granted Patent
Utility
US 5,598,049 · App. 08/292,752
Slot sealing arrangement
Inventor:
Walter Meier
Patented Case
View Patent ↗
Granted: Jan 28, 1997
Filed: Aug 18, 1994
Inventor
Walter Meier
Assignee (at issue)
ABB Management 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.