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Arkwright's patents are overturned

Litigation in 1785 struck down Arkwright's spinning and carding patents, on grounds including inadequate specification and prior art. The immediate consequence was that his machinery could be copied freely, and mill building in Lancashire, Derbyshire and Scotland accelerated sharply. The organisational model spread with the machines.

Historical — it happened, and the record is settled.

Subjects

Evidence

Partly verified — Core facts are sourced; some optional detail is deliberately absent.

Recorded on Richard Arkwright

  1. Parliament bans the use of printed calicoes
  2. Hargreaves devises the spinning jenny
  3. Arkwright patents the water frame
  4. Cromford Mill begins spinning
  5. Crompton completes the spinning mule
  6. The rotative engine turns a shaft
  7. Cartwright patents the power loom
  8. Arkwright's patents are overturned
  9. The Great Exhibition

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