The broken lines depict portions of the concrete block insulation that form no part of the claimed design. The broken lines in
The broken lines depict portions of the concrete block insulation that form no part of the claimed design. The broken lines in
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3204381 | Perreton | Sep 1965 | A |
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Entry |
---|
Korfil Block Insulation (on-line), dated Apr. 8, 2016. Retrieved from Internet Oct. 7, 2019, URL: http://web.archive.org/web/20160408232429/http://www.cbisinc.com/PDF/Korfil_ICON_Unitherm/201_Korfil_Data_Sheet09.pdf (1 page) (Year: 2016). |
Number | Date | Country | |
---|---|---|---|
Parent | 15728052 | Oct 2017 | US |
Child | 29643748 | US |