Granted Patent
Utility
US 5,772,074 · App. 08/414,538
Device and method for indicating the dispensing of a predetermined amount of a material
Inventors:
Dwain Dial, Joseph Chang, Hwa Ming Huang
Patented Case
View Patent ↗
Granted: Jun 30, 1998
Filed: Mar 31, 1995
Inventors
Dwain Dial
Joseph Chang
Hwa Ming Huang
Assignee (at issue)
Waterbury Companies, Inc.
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.