"However, the SEC does have the power revoke the registration of a security. In that instance, I can't give you a time frame. That is decided on a case-by-case basis."
Spot on. The rules don't carry a time frame requirement for failure to comply.
Securities Exchange Act of 1934
Section 12 -- Registration Requirements for Securities
j. Denial, suspension, or revocation of registration; notice and hearing
The Commission is authorized, by order, as it deems necessary or appropriate for the protection of investors to deny, to suspend the effective date of, to suspend for a period not exceeding twelve months, or to revoke the registration of a security, if the Commission finds, on the record after notice and opportunity for hearing, that the issuer, of such security has failed to comply with any provision of this title or the rules and regulations thereunder. No member of a national securities exchange, broker, or dealer shall make use of the mails or any means or instrumentality of interstate commerce to effect any transaction in, or to induce the purchase or sale of, any security the registration of which has been and is suspended or revoked pursuant to the preceding sentence.
Just to highlight the language differences here's the 10 day suspension rule from the same Section 12:
k. Trading suspensions; emergency authority
Trading suspensions
If in its opinion the public interest and the protection of investors so require, the Commission is authorized by order--
A. summarily to suspend trading in any security (other than an exempted security) for a period not exceeding 10 business days
