Thirty seconds on Google Patents found a 1989 device that lapsed in 2016. I expected to see a patent from the early 1900's, so color me surprised! https://pate

Thirty seconds on Google Patents found a 1989 device that lapsed in 2016. I expected to see a patent from the early 1900's, so color me surprised! https://patents.google.com/patent/US5024643A/en https://patents.google.com/patent/US5024643A/en