Combined temperature and humidity detection instrument
Description
FIG. 1 is a top, front and left side perspective view of a combined temperature and humidity detection instrument showing my new design;
FIG. 2 is a top, rear and right side perspective view; and,
FIG. 3 is a top plan view thereof.
The bottom plan view being flat, plane and unadorned.
Referenced Cited
U.S. Patent Documents
D314155 | January 29, 1991 | Toivonen |
2571628 | October 1951 | Stanley |
3771364 | November 1973 | Worthington |
3855863 | December 1974 | Kuehn et al. |
Patent History
Patent number: D331024
Type: Grant
Filed: Sep 17, 1990
Date of Patent: Nov 17, 1992
Inventor: Peter H. DeRidder (West Bloomfield, MI)
Primary Examiner: Donald P. Walsh
Assistant Examiner: Antoine D. Davis
Law Firm: Dykema Gossett
Application Number: 7/583,710
Type: Grant
Filed: Sep 17, 1990
Date of Patent: Nov 17, 1992
Inventor: Peter H. DeRidder (West Bloomfield, MI)
Primary Examiner: Donald P. Walsh
Assistant Examiner: Antoine D. Davis
Law Firm: Dykema Gossett
Application Number: 7/583,710
Classifications
Current U.S. Class:
Temperature, Humidity, Atmospheric Condition (3) (D10/52);
Regulator Or Control (D10/49)