Mark Twain was granted U.S. Patent No. 140,245 for a self-pasting scrapbook on June 24, 1873.
Notes on verification
Confirmed by primary patent record (Google Patents US140245A) and corroborated by Mark Twain House & Museum and USPTO, independent sources agree on patent number, date, and description. [tier=bronze indep_score=0.525 clusters=2 claim_tier=notable | framework convergence=single on USPTO patent database (original 1873 grant, digitized) (upstreams: USPTO patent records, Google Patents digitization) — publishers independent, evidence may not be | kind=empirical eligibility=high]
Sources
- Unswerving irregularity | USPTO (seed:firsts_and_inventions)
- https://patents.google.com/patent/US140245A/en (corroboration)
- https://www.marktwainhouse.org/mark-twain-the-inventor/ (corroboration)