US Patent 11274491 Pet door and detachable window systems

Implementations of detachable door systems may include: a first panel having a first end and a second end and a second panel having a first end and a second end. The first end of the second panel is configured to removably couple with the second end of the first panel. A first triangular panel is coupled to the first end of the first panel and a second triangular panel is coupled to the second end of the second panel.