Heating unit for use in melting and keeping hydrocolloid cartridges in liquid form

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Information

Patent Grant
D332998

References
Source

Patent Number
D332,998
Date Filed
Monday, December 31, 1990
34 years ago
Date Issued
Tuesday, February 2, 1993
31 years ago

Inventors
- Robert E. Burridge
Original Assignees
- Belport Co., Inc.
Examiners
- Burke; Wallace R.
- Lichenstein; Lisa
Agents
- Munro; Jack C.

US Classifications
- D23 - Environmental heating and cooling
Field of Search
- US
- D23 335
- 219 521
- 219 585
- 219 386
- Term of Grant
  14Years

Information

Abstract

Description

Claims

The ornamental design for a heating unit for use in melting and keeping hydrocolloid cartridges in liquid form, as shown and described.

US Referenced Citations (2)

Number	Name	Date	Kind
3335459	Tyrner	Aug 1967
4713523	MacDonald	Dec 1987