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Patent
   D331024
Priority
Sep 17 1990
Filed
Sep 17 1990
Issued
Nov 17 1992
Expiry
Nov 17 2006
Inventors
DeRidder, …
Assg.orig
Assg.curr
Entity
unknown
Referenced by
5
References
4
Maint.:
n/a
The ornamental design for a combined temperature and humidity detection instrument, as shown and described.

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.
INVENTORS:

DeRidder, Peter H.

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
D338162, Dec 09 1991 Atmospheric pressure warning device
D524176, Mar 17 2005 Chaney Instrument Co. Heat index monitor
D916083, Jun 12 2019 Carrier Corporation Data logging tool
D933652, Jun 12 2019 Carrier Corporation Data logging tool
D933653, Jun 12 2019 Carrier Corporation Data logging tool
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
2571628,
3771364,
3855863,
D314155, Mar 03 1988 Vaisala Oy; VAISALA OY, VANHA NURMIJARVENTIE 21, 01670, VANTAA, FINLAND Humidity and temperature meter
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