Episode 2 of 3
Patent Sale
- When
- 1862
- Where
- unresolved
Lipman sold his patent rights to Joseph Reckendorfer for $100,000 in 1862, leading to infringement litigation.
The sale transferred the rights to Reckendorfer, who subsequently sued a pencil manufacturer for infringement; sources name the defendant as Faber in one account and Faber-Castell in another. This transaction preceded the eventual Supreme Court review of the patent's validity.
Sources
- Hymen Lipman Wikipedia, revision of 2026-08-12
- Pencil Wikipedia, revision of 2026-09-22
Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.