6.5 Grendel Variants, Good or Bad?

[BjornF16]

But I do find it interesting that Steve Satern, under contract at the time to AA to build Grendel barrels, was signing off on a drawing of a Grendel variant chamber, and was keeping the trademarked name of Grendel on it. There is an awful lot of strangeness there, since the Grendel wasn't yet SAAMI and was still trademarked.

Wouldn't there also be culpability for PTG for infringing upon a trademarked name (at that time)?

(Not to mention the entire ethics issues it raises...)