Stackable building block
Description
Claims
I claim the ornamental design for a stackable building block, as shown and described.
Referenced Cited
U.S. Patent Documents
3645059 | February 1972 | Grimm |
3787996 | January 1974 | Smith |
4441298 | April 10, 1984 | Limousin |
4633639 | January 6, 1987 | Deimen |
4990116 | February 5, 1991 | Chen |
D638501 | May 24, 2011 | Fishman |
D649201 | November 22, 2011 | Fishman |
8869464 | October 28, 2014 | Newland |
11117067 | September 14, 2021 | Comfort |
11541323 | January 3, 2023 | Yates |
20130115848 | May 9, 2013 | Silverglate |
Patent History
Patent number: D1014648
Type: Grant
Filed: Jun 6, 2023
Date of Patent: Feb 13, 2024
Inventor: Margaret Yates (West Orange, NJ)
Primary Examiner: Cynthia M. Chin
Application Number: 29/894,064
Type: Grant
Filed: Jun 6, 2023
Date of Patent: Feb 13, 2024
Inventor: Margaret Yates (West Orange, NJ)
Primary Examiner: Cynthia M. Chin
Application Number: 29/894,064
Classifications
Current U.S. Class:
Cylindrical (D21/487)