Filing a PCT application at the USPTO with no US applicants?

A member of the PCT listserv asked:

On a US application filed yesterday with non-US inventors (no US assignee) and a PCT filing deadline of today, we filed through the USPTO and got a PCT application number, we just could not upload it as a PCT-Safe Zip file.   The USPTO PCT Helpline said it was okay to file through the USPTO, just a $240 transmittal charge.  We uploaded the PCT-101 request as a separate document.  Will this be enough to secure a PCT filing date?

The answer is “maybe yes”, depending on the detailed situation. Continue reading “Filing a PCT application at the USPTO with no US applicants?”