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Grant of Patent for Artificial Stone
- When
- October-December 1824
- Where
- Leeds, Yorkshire
Joseph Aspdin received a patent for an artificial stone, naming it Portland cement due to its resemblance to Portland stone.
The patent, granted on 21 October 1824, covered an improvement in producing artificial stone. Aspdin coined the term Portland cement by analogy with the oolitic limestone quarried on the Isle of Portland. The specification was enrolled in the High Court of Chancery in December 1824.
Sources
- Joseph Aspdin Wikipedia, revision of 2026-08-29
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.