IP Library › Granted Patent US 5,190,643
Granted Patent Utility
US 5,190,643 · App. 07/818,620

Water treatment device having means to count times used and limit useage

Inventors: J. Kenneth Duncan, Wesley A. Schroeder
Patented Case View Patent ↗
Granted: Mar 2, 1993 Filed: Jan 10, 1992
Inventors
J. Kenneth Duncan
Wesley A. Schroeder
Assignee (at issue)
MR.COFFEE CO., LTD.

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Quick Facts
Patent No.
US 5,190,643
App. No.
07/818,620
Filed
1992-01-10
Granted
1993-03-02
Kind
A