IP Library Granted Patent US 5,603,445
Granted Patent Utility
US 5,603,445 · App. 08/201,303

Ultrasonic wire bonder and transducer improvements

Inventors: William H. Hill, Joseph E. Donner
Patented Case View Patent ↗
Granted: Feb 18, 1997 Filed: Feb 24, 1994
Inventors
William H. Hill
Joseph E. Donner

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.

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Quick Facts
Patent No.
US 5,603,445
App. No.
08/201,303
Filed
1994-02-24
Granted
1997-02-18
Kind
A