I got a response from case, looks like if it wasnt made in the last year or so your out of luck.
Dear Valued Case Customer,
You will need to return your Case knife to our repair center for evaluation. All our products are covered by a LIMITED LIFETIME WARRANTY against defects in workmanship and materials. Our warranty does not cover normal wear, missing parts, accidents, altering, theft, loss, misuse or neglect.
Send your knife to CASE REPAIR CENTER, OWENS WAY , BRADFORD , PA 16701 . Include your name, address, phone number and specific repair instructions. Be sure to let us know if your knife has sentimental value. Also, we recommend that you insure your package. Please allow 7-8 weeks for servicing. You will be contacted by mail if any charges apply. We do our best to repair all our knives, however, we no longer have parts for discontinued patterns and if the knife is a current pattern but very old, it is possible that the new parts will not fit. All repairs are made with 2007 parts.
Some non-warranty fees
FOLDING BLADES - $10.00 ea.
PLASTIC COVERS - $10.00 ea.
BONE COVERS - $12.00 ea.
SHIPPING & HANDLING - $7.50
Sincerely,
Case Repair Center