Fireplace heat exchanger
Stewart December 6, 1
U.S. patent number D271,711 [Application Number 06/267,030] was granted by the patent office on 1983-12-06 for fireplace heat exchanger. Invention is credited to Allen L. Stewart.
| United States Patent | D271,711 |
| Stewart | December 6, 1983 |
Fireplace heat exchanger
Claims
The ornamental design for a fireplace heat exchanger, as shown and described.
| Inventors: | Stewart; Allen L. (Clayton, NC) |
|---|---|
| Appl. No.: | 06/267,030 |
| Filed: | May 26, 1981 |
| Current U.S. Class: | D23/403 |
| Current International Class: | D2303 |
| Field of Search: | ;126/120,121,130,131,132 ;D23/92-97,136 |
References Cited [Referenced By]
U.S. Patent Documents
| 227171 | May 1880 | Logan et al. |
| 3190282 | June 1965 | Bauer |
| 4164931 | August 1979 | Jenkins |
| 493543 | Aug 1919 | FR | |||
| 2403519 | May 1979 | FR | |||
Attorney, Agent or Firm: Lawton; William C.
Description
FIG. 1 is a perspective view of a fireplace heat exchanger, showing my new design.
FIG. 2 is a front elevational view thereof.
FIG. 3 is a side elevational view thereof.
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