the following is what we copied from their web site;
At Fisher Space Pen Co. we stand behind our products and our pens are guaranteed against all manufacturing defects.
If your Fisher Space Pen or your Fisher Space Pen Cartridge malfunctions, please send your item and all of the parts to us for repair or replacement via USPS 1st Class Mail. (Please be advised that USPS postal equipment tears an ordinary envelope and unprotected items are lost)
Upon receipt, your Fisher Space Pen product will be thoroughly inspected by our Quality Control Department to determine the cause of the malfunction and your repair or replacement will ship via standard shipping within three weeks at no cost to you. (During the holiday season from Thanksgiving through the New Year, this time period may be extended to four weeks from date of receipt)
We cannot be responsible for an item that is lost or damaged due to inadequate packaging and recommend that you insure your shipment in case of loss in transit.
To return your item, please follow the instructions below:
1. Securely package the item in a small box
2. Include your Order Number (if you have one), Name, Mailing Address,
Telephone Number and Email Address
3. Send to:
Attention: Consumer Services
Fisher Space Pen Co.
711 Yucca Street
Boulder City NV 89005
If you have any questions or need further assistance, please email our Consumer Service department at email@example.com or call 702-293-3011 between the hours of 7:00 a.m. and 4:00 p.m. Monday through Friday.
Answered on 1/13/2015 by Bg