                                                                           FILED
                           NOT FOR PUBLICATION                              AUG 04 2011

                                                                        MOLLY C. DWYER, CLERK
                    UNITED STATES COURT OF APPEALS                       U .S. C O U R T OF APPE ALS




                            FOR THE NINTH CIRCUIT



AMES CONSTRUCTION, INC.,                         No. 10-35476

              Plaintiff-counter-defendant -      D.C. No. 9:08-cv-00164-DWM
Appellee,

  v.                                             MEMORANDUM *

MAXUM INDEMNITY COMPANY,

              Defendant-counter-claimant -
Appellant,

  v.

INTERMOUNTAIN INDUSTRIAL, INC.,

              Defendant-third-party-
plaintiff - Appellee,

  v.

WESTERN STATES INSURANCE
AGENCY, INC.,

              Third-party-defendant -
Appellee.




        *
             This disposition is not appropriate for publication and is not precedent
except as provided by 9th Cir. R. 36-3.
                   Appeal from the United States District Court
                           for the District of Montana
                   Donald W. Molloy, District Judge, Presiding

                            Submitted August 1, 2011 **
                               Seattle, Washington

Before: NOONAN and M. SMITH, Circuit Judges, and FOGEL, District Judge.***


      In this insurance coverage dispute, Maxum Indemnity Company (“Maxum”)

appeals the district court’s grant of summary judgment in favor of the three other

parties. The court below found that Maxum owed Ames Construction, Inc.

(“Ames”) a defense as an additional insured under a policy purchased by

Intermountain Industrial, Inc. (“Intermountain”).

      We have jurisdiction pursuant to 28 U.S.C. § 1291. “We review the district

court’s grant of summary judgment de novo.” Pan Pac. Retail Props. Inc. v. Gulf

Ins. Co., 471 F.3d 961, 965 (9th Cir. 2006). Montana law applies to this diversity

case. See Erie R.R. Co. v. Tompkins, 304 U.S. 64, 78 (1938). We affirm.

      Endorsement #4 says coverage is provided “only if certificate of insurance

has been provided to Company prior to date of loss.” This sentence does not make


        **
             The panel unanimously concludes this case is suitable for decision
without oral argument. See Fed. R. App. P. 34(a)(2).
        ***
            The Honorable Jeremy D. Fogel, District Judge for the U.S. District
Court for Northern California, sitting by designation.

                                          2
clear which company must have the certificate in hand for Ames to be covered.

That ambiguity must be construed in favor of coverage. See Marie Deonier &

Assocs. v. Paul Revere Life Ins. Co., 9 P.3d 622, 630 (Mont. 2000).

      The “intended use” exclusion did not necessarily apply to the underlying

accident. Intermountain supplied both the grating and the clips that were intended

to secure it. The uninstalled clips had not yet been put to their intended use, and it

is not absolutely clear that the grating had been. Lacking an “unequivocal

demonstration” that the claim against Ames did not fall within the policy’s

coverage, Maxum had a duty to defend Ames in the underlying law suit. See

Farmers Union Mut. Ins. Co. v. Staples, 90 P.3d 381, 385 (Mont. 2004).

      AFFIRMED.




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