As discussed in Note 6, the Company has entered in an “Exclusive Patent and Know-How License Agreement Including Transfer of Ownership” that requires minimum license maintenance costs. The Company is planning on using the intellectual property granted by the patents for the foreseeable future. The license agreement is considered expired on October 14, 2025, the date the patent expires. Future minimum maintenance fee payments are as follows:

The Company has the option to pay $2,500,000 and issue 925,000 shares of common stock for the assignment of the patents, and upon doing so, the requirement to make minimum license maintenance costs ends.

Property Leases

On June 1, 2011, the Company entered into a 36 month lease for warehouse space in Centralia, Washington, commencing August 1, 2011. The lease provides for the option to extend the lease on a month to month basis. Rent is $1,900 monthly throughout the term of the lease.

On June 1, 2014, the Company entered into a seven month lease for warehouse space in Fairfield, Texas, commencing June 1, 2014. The lease provides for the option to extend the lease on a month to month basis. Rent is $3,000 monthly throughout the term of the lease.

On January 27, 2015, the Company entered into a 13-month lease for office space in Lewis Center, Ohio, commencing February 1, 2015. The lease provides for the option to extend the lease for up to five additional years. Rent was abated for the first month of the lease. Rent is $1,378 per month for months two through thirteen. Future minimum lease payments under this non-cancelable lease in 2015 and 2016 are $13,780 and $2,758, respectively.

The Company also leases office space in Grand Forks, ND, which has a renewable annual term and requires quarterly rental payments of $1,631.

Rent expense was approximately $28,000 and $12,000 for the quarters ended March 31, 2015 and 2014, respectively.

Fixed Price Contract

The Company’s multi-year contracts with its commercial customers contain fixed prices for product. These contracts expire through 2019 and expose the Company to the potential risks associated with rising material costs during that same period.