Question

For what reason did John H. Loud get a patent twenty years later?​

Answer 1

Loud invented and obtained a patent for what is considered to be the first ballpoint pen in 1888; however, his invention was not commercialized and the patent would eventually lapse. The modern ballpoint pen would be patented later in 1938 by László Bíró, 22 years after Loud's death.

Explanation: I have done this research.