The APL community is contemplating the adoption of a common logo but some are worried about trouble from Apple lawyers. Now, IBM and others have been using apple motifs in promoting APL for a long time, but how long exactly? Maybe it can be shown to predate the lawsuit-happy Apple Computer Company?
Old IBM sticker apparently from the '80s
BYTE magazine from '77 with a striking resemblance to Apple's logo at the time.
When was an apple first used to promote APL?

Furthermore, it most certainly could be confusing. People who don't know about APL might assume it has something to do with Apple. So yes, APL should keep away from it to avoid legal battles they might lose.
– JeremyP Nov 26 '21 at 08:56