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Patent
   D930142
Priority
Jun 01 2018
Filed
Dec 22 2020
Issued
Sep 07 2021
Expiry
Sep 07 2036
Inventors
Lu, Biao
Assg.orig
DURKEE HI-…
Assg.curr
DURKEE HI-…
Entity
unknown
Referenced by
0
References
12
Maint.:
n/a
The ornamental design for an air-duct, as shown and described.

The sole FIGURE is a perspective view of an air-duct showing my new design.
INVENTORS:

Lu, Biao, Pan, Cong

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
10088694, May 08 2014 Rolled elastomeric tubular casings for eyewear
10859194, May 20 2013 STEERE ENTERPRISES, INC. Clean air duct and retaining clip and assembly thereof
10876662, Mar 15 2017 Novelis Inc. Corrugated heat protection tube and methods of making the same
3654966,
4178067, Jan 19 1978 AMP Incorporated Splicing optic waveguides by shrinkable means
4691986, Nov 06 1985 Fitel USA Corporation Aligned plug optical fiber connector with "contiguous" plugs, and method for using same
5487412, May 26 1993 Schuller International, Inc. Glass fiber airduct with coated interior surface containing a biocide
7802412, Mar 19 2003 VESTAS WIND SYSTEMS A S Method of constructing large towers for wind turbines
20050109415,
20090011270,
D776801, Jun 24 2014 Kobe Steel, Ltd Heat exchanger tube
D901664, Oct 28 2016 Energizer Group Limited Air freshener
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Dec 22 2020DURKEE HI-TECH MATERIAL (WUHAN) GROUP CO., LTD.(assignment on the face of the patent)
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