Hydrometer
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Description
FIG. 1 is an enlarged perspective view of the hydrometer showing our new design as viewed from the upper left hand side thereof;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a side elevaation view from the right side of FIG. 3;
FIG. 6 is a side elevation view from the left side of FIG. 3; and,
FIG. 7 is a rear elevation view thereof.
Referenced Cited
Patent History
Patent number: D384299
Type: Grant
Filed: Mar 22, 1996
Date of Patent: Sep 30, 1997
Assignee: Aquarium Systems, Inc. (Mentor, OH)
Inventors: Edmund J. Mowka, Jr. (Mentor, OH), Thomas A. Frakes (Mentor, OH)
Primary Examiner: Antoine Duval Davis
Law Firm: Renner, Otto, Boisselle & Sklar, P.L.L.
Application Number: 0/52,087
Type: Grant
Filed: Mar 22, 1996
Date of Patent: Sep 30, 1997
Assignee: Aquarium Systems, Inc. (Mentor, OH)
Inventors: Edmund J. Mowka, Jr. (Mentor, OH), Thomas A. Frakes (Mentor, OH)
Primary Examiner: Antoine Duval Davis
Law Firm: Renner, Otto, Boisselle & Sklar, P.L.L.
Application Number: 0/52,087
Classifications