Concrete block insulation
Latest CFI FOAM, INC. Patents:
The broken lines depict portions of the concrete block insulation that form no part of the claimed design. The broken lines in
Claims
The ornamental design for concrete block insulation, as shown and described.
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Type: Grant
Filed: Apr 11, 2018
Date of Patent: Mar 31, 2020
Assignee: CFI FOAM, INC. (Knoxville, TN)
Inventor: Richard Ayers Porter (Knoxville, TN)
Primary Examiner: Kevin K Rudzinski
Assistant Examiner: Kimberly Barnes
Application Number: 29/643,748