USPS Priority Mail Express is a guaranteed way to send documents and packages to a destination overnight or in one to two days on any day of the year, including Sundays and holidays. If the US Postal Service doesn't deliver your package on time, they will refund the full delivery cost to you.
The filing period of an initial financing statement is 5 years. If a continuation is not filed, the initial financing statement will lapse 5 years from the original filing date. A continuation extends the filing period 5 additional years from the original filing date.
There are a few other stipulations depending upon what exactly your CC deemed necessary to file in your UIF. Without more information, best I can answer is that you're looking at one year from the most recently dated paperwork that was filed.