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
Foreign Patent Documents
|
|
|
|
|
|
|
493543 |
|
Aug 1919 |
|
FR |
|
2403519 |
|
May 1979 |
|
FR |
|
Primary Examiner: Kemper; Catherine E.
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.
* * * * *