2024 37 CFR 2.172 – Surrender for cancellation

2023 37 CFR 2.172 – Surrender for cancellation

2022 37 CFR 2.172 – Surrender for cancellation

2021 37 CFR 2.172 – Surrender for cancellation

2020 37 CFR 2.172 – Surrender for cancellation

2019 37 CFR 2.172 – Surrender for cancellation

2016 37 CFR 2.172 – Surrender for cancellation

2015 37 CFR 2.172 – Surrender for cancellation

2014 37 CFR 2.172 – Surrender for cancellation

2010 37 CFR 2.172 – Surrender for cancellation