Granted Patent
Utility
US 4,778,055 · App. 07/025,134
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Inventor:
Randall A. Kiedaisch
Patented Case
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Granted: Oct 18, 1988
Filed: Mar 12, 1987
Inventor
Randall A. Kiedaisch
Assignee (at issue)
Manville 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.