Granted Patent
Utility
US 4,893,903 · App. 06/856,356
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Inventors:
David H. Thakar, Michael N. Thakar
Patented Case
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Granted: Jan 16, 1990
Filed: Apr 28, 1986
Inventors
David H. Thakar
Michael N. Thakar
Assignee (at issue)
Taliq 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.