STG Patent Endorsement 2 (Specified Reservations)

The Company hereby insures against loss or damage sustained by the Insured by reason of any final court order or judgment in favor of the United States of America, other than from claim(s) of unmarketability, resulting from the exercise of the Reservation(s) contained in the Patent(s) described in Exception(s) ____ of Schedule B.

For purposes of this endorsement only, “Reservation(s)” means the following:

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This endorsement is issued as part of the policy. Except as it expressly states, it does not (i) modify any of the terms and provisions of the policy, (ii) modify any prior endorsements, (iii) extend the Date of Policy, or (iv) increase the Amount of Insurance. To the extent a provision of the policy or a previous endorsement is inconsistent with an express provision of this endorsement, this endorsement controls. Otherwise, this endorsement is subject to all of the terms and provisions of the policy and of any prior endorsements.

Dated: To Be Determined

In witness whereof, Stewart Title Guaranty Company has caused this policy to be signed and sealed by its duly authorized officers as of Date of Policy shown in Schedule A.