Owen J. Roberts, United States v. Garbutt Oil Company…
“ The function of the statute, like that of limitations generally, is to give protection against stale demands. The function of the regulation is to facilitate research.' In the cited case, and others decided at about the same time, we held that, while the Commissioner might have enforced the regulation and rejected a claim for failure to comply with it in omitting to state with particularity the grounds on which the claim was based, he was not bound to do so, but might waive the requirement of the regulation and consider a general claim on its merits. ”
