US 12,305,420 B2
Seismic retrofit system
Vassil Dimitrov, Seattle, WA (US)
Filed by Vassil Dimitrov, Seattle, WA (US)
Filed on Nov. 10, 2022, as Appl. No. 18/054,466.
Prior Publication US 2024/0159075 A1, May 16, 2024
Int. Cl. E04H 9/02 (2006.01)
CPC E04H 9/027 (2013.01) 20 Claims
OG exemplary drawing
 
1. A seismic washer comprising:
a fastener comprising a first opening, and
a washer fixedly attached to and extending from the fastener, the washer including a second opening provided approximately perpendicular to the first opening, wherein the second opening is configured to receive a bolt coupling the washer to a structural building component.