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The price range of Fisher Space Pen varies depending on the model, design, and features of the pen. According to the official website, the cheapest pen is the Bullet Space Pen, which costs $25, while the most expensive pen is the AG7 Original Astronaut Space Pen, which costs $82. You can also find other models and styles of Fisher Space Pen on the website or on other online retailers, such as The Pen Company.

The Fisher Space Pen is designed to last for a long time, as it uses a pressurized ink cartridge that can write for three times longer than a standard ballpoint pen. According to the Wikipedia article, the product literature states that the pen will write exactly 30.7 miles (49.4 km). In contrast, the standard PR (Pressurized Refill) cartridge is rated to write for over 12,000 feet (3,700 m). The pen also has an estimated shelf life of 100 years.

Fisher Space Pen is a pen that uses pressurized ink cartridges and is able to write in zero gravity, underwater, over wet and greasy paper, at any angle, and in a very wide range of temperatures. It was invented by Paul C. Fisher in 1965 and patented as the AG7 "anti-gravity" pen. The pen was used by NASA astronauts and Soviet cosmonauts in their space missions, and became popular among the general public as well. Fisher Space Pen Company is the official manufacturer and marketer of the pen, and it is based in Boulder City, Nevada.

The space pen works by using a special ink that is thixotropic, meaning that it is solid until a shearing force (such as the rolling of the ballpoint) liquefies it. The ink is contained in a hermetically sealed and pressurized reservoir that prevents it from leaking or drying out. The ink is forced out by compressed nitrogen gas at a pressure of nearly 310 kPa (45 psi; 3.1 atm). The ballpoint is made from tungsten carbide and is precisely fitted to avoid leaks. A sliding float separates the ink from the pressurized gas. The pen can operate in temperatures ranging from −34 to 121 °C (239 to 394 K; −29 to 250 °F).

No, they do not have a physical store in the US. Fisher Space Pen Company is an online retailer that sells its products through its website or through other authorized dealers and distributors. You can find a list of the authorized dealers and distributors on the website or contact the customer service team for more information.