obsolete items

Typewriter

Period: 1873 to 1990

https://boards.straightdope.com/sdmb/showthread.php?t=736965

Public pay phone

Period: 1876 to 2016

https://www.abc10.com/article/news/local/history-of-payphones-you-know-that-thing-you-dont-use-anymore/440924470

Polaroid instant picture

Period: 1950 to 1991

http://www.startribune.com/in-an-instant-an-era-is-ending-at-polaroid/16135202/

Pagers

Period: 1959 to 2001

https://www.thoughtco.com/history-of-pagers-and-beepers-1992315

Boombox

Period: 1970 to 2000

https://www.nytimes.com/2010/10/16/arts/music/16boombox.html

Vinyl's

Period: 1973 to 1990

https://www.spin.com/2014/05/did-vinyl-really-die-in-the-90s-death-resurgence-sales/

walkman

Period: 1979 to 1986

https://techspirited.com/timeline-history-of-walkman

Movie rental stores

Period: 1980 to 1990

https://smallbusiness.chron.com/movie-rental-industry-life-cycles-63860.html

PDA

Period: 1989 to 2009

http://www.sophisticatededge.com/history-of-the-pda.html

Game boys

Period: 1998 to 2003

http://www.obsoletemedia.org/nintendo-game-boy-color/