emendoza0001122
emendoza0001122 emendoza0001122
  • 25-02-2022
  • History
contestada

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

Respuesta :

peytonhickey peytonhickey
  • 25-02-2022

Answer:

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.

Answer Link

Otras preguntas

When may you transfer the person from the bed to a chair without a transfer belt?
Where were the earliest modern humans in australia, dating to 50 to 40,000 ybp, found?
Shakespeare portrays Hamlet as a man who falls from a high status, which makes Hamlet an example of a(n)
How does this document/picture help explain the reasons for the decline of the Roman Empire?
shelllly12 What is the probability of randomly drawing 1 card, out of a standard deck of 52 playing cards, that is an ace card or a club card? Enter your answer
i need help wit dis bruh
What is the longest diagonal of a rectangular 44 ft times ×33 ft times ×55 ft​ box?
Vinegar would be classified as ____. Choose all that apply A. Heterogeneous Mixture B. Compound C. Liquid D. Solid E. Gas F. Homogeneous Mixture G. Acid H
What kind of mutation occurs when one base is changed to another at a single location in the dna?
All methods for disposal of hazardous wastes except ____ A. Sanitary landfills B. Waste exchange C. Controlled incineration D. Deep Well Injection