Dist. Ct. did not err in awarding defendants $63,391.45 in costs under 28 USC section 1920 as prevailing parties in litigation that spanned total of 28 years. Defendants did not file untimely request where defendants had previously filed timely Rule 59 motion that was pending at time request for costs had been filed, since relevant time for filing bill of costs did not begin to run until Dist. Ct. had resolved Rule 59 motion. Moreover, defendants were not required to do more than use statutory form of affidavit under 28 USC section 1924 to establish necessity of said costs. Fact that original Dist. Ct. judge failed to act on request for costs for three-year period did not require different result.