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Patent
   D945643
Priority
Nov 26 2019
Filed
Nov 26 2019
Issued
Mar 08 2022
Expiry
Mar 08 2037
Inventors
Suga, Masa…
Assg.orig
ASURO CO ,…
Assg.curr
ASURO CO ,…
Entity
unknown
Referenced by
5
References
23
Maint.:
n/a
The ornamental design for a concrete building block, as shown and described.

1. Concrete building block

1.1 : Perspective

1.2 : Front

1.3 : Back

1.4 : Top

1.5 : Bottom

1.6 : Right

1.7 : Left

1.8 : Cross sectional

The broken lines do not form part of the claimed design; reproduction 1.8 is a cross sectional view cut horizontally at the center in a longitudinal direction of the product as shown by lines “A-A” in reproduction 1.2.
INVENTORS:

Suga, Masaaki

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
D953580, Dec 06 2019 ASURO CO , LTD Concrete building block
D963893, Dec 06 2019 ASURO Co., LTD. Concrete building block
D967985, Dec 06 2019 ASURO Co., LTD. Concrete building block
D968654, Apr 23 2020 ASURO Co., LTD. Concrete building block
D970047, Jun 05 2019 ASURO Co., LTD. Concrete building block
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
2498276,
3855752,
4094380, Jun 03 1976 Chiyoda Chemical Engineering & Construction Co., Ltd. Multi layer sound-proofing structure
4473985, Apr 30 1982 ASSOCIATED BUILDING SYSTEMS INTERNATIONAL, INC , A TEXAS CORP Building block
4485604, Mar 09 1981 Modular building elements which form when assembled a network of conglomerate or reinforced concrete to form a bearing structure which is also anti-seismic
5048250, Apr 02 1990 Building block
5729943, Nov 18 1992 Sirprogetti S.r.l. Building block, a process for its manufacture and a building structure produced using these blocks
20150218805,
20200032513,
138256,
225846,
D245999, Feb 12 1975 Norton Company Support block for chemical tower packing
D409313, Feb 27 1998 Concrete block and brick
D633630, Oct 09 2007 Oldcastle Architectural, Inc. Building unit
D655021, Feb 02 2010 BLANKING SYSTEMS, INC Frame member
68612,
D893053, Aug 14 2018 Allan Block, LLC Retaining wall block
D902444, Jul 24 2018 ASURO CO , LTD Concrete building block
D915627, Apr 13 2018 Oldcastle Building Products Canada Inc. Molded surface of a concrete product
GBGN82047100001000,
GBGN82047100002000,
JP1591307,
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ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Sep 21 2021SUGA, MASAAKIASURO CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0577650404 pdf
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