Temperature trend indicator
Description
FIG. 1 is a front perspective view of an embodiment of a temperature trend indicator.
FIG. 2 is a front perspective view of a second embodiment of a temperature trend indicator.
FIG. 3 is a front perspective view of a third embodiment of a temperature trend indicator; and,
FIG. 4 is a front perspective view of a fourth embodiment of a temperature trend indicator.
Claims
The ornamental design for a temperature trend indicator, as shown and described.
Referenced Cited
U.S. Patent Documents
| 342222 | May 1886 | Paull |
| 409379 | August 1889 | Ward |
| 478964 | July 1892 | Brandt |
| 483662 | October 1892 | Ward |
| D288178 | February 10, 1987 | Henkels |
Patent History
Patent number: D544380
Type: Grant
Filed: Jan 14, 2005
Date of Patent: Jun 12, 2007
Inventor: Steven G. Bloechl (Denver, CO)
Primary Examiner: Antoine D. Davis
Application Number: 29/221,416
Type: Grant
Filed: Jan 14, 2005
Date of Patent: Jun 12, 2007
Inventor: Steven G. Bloechl (Denver, CO)
Primary Examiner: Antoine D. Davis
Application Number: 29/221,416
Classifications
Current U.S. Class:
Expanding Fluid Type (D10/58)
