Magnetic aquarium thermometer

- Penn-Plax Plastics, Inc.
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Description

FIG. 1 is a top plan view of the magnetic aquarium thermometer showing our new design.

FIG. 2 is a front elevational view thereof.

FIG. 3 is a first side elevational view thereof.

FIG. 4 is a side elevational view of the opposite side thereof, and

FIG. 5 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D146439 March 1947 Wappner
D192232 February 1962 Willinger et al.
Patent History
Patent number: D256563
Type: Grant
Filed: Jun 8, 1978
Date of Patent: Aug 26, 1980
Assignee: Penn-Plax Plastics, Inc. (Garden City, NY)
Inventors: Marvin A. Goldman (Great Neck, NY), Jerome N. Goldman (New York, NY), Silvio J. Di Marchi (Wyckoff, NJ), Arthur Gilmore (Greenlawn, NY)
Primary Examiner: Donald B. Moyer
Attorney: Michael A. Cornman
Application Number: 5/913,850
Classifications
Current U.S. Class: Expanding Fluid Type (D10/58)
International Classification: D1004;