Granted Patent
Utility
US 6,223,489 · App. 09/328,017
Construction block cap
Inventor:
Myles A. Fisher
Patented Case
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Granted: May 1, 2001
Filed: Jun 8, 1999
Inventor
Myles A. Fisher
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.