A voluntary suspension of compensation payments under a patent licence did not permanently extinguish the right to resume them — reasonable notice, given by counterclaim, was sufficient to revive strict legal rights.

A warranty given after a horse sale was unenforceable because the completed purchase could not provide valid consideration for a new promise made after the fact.

Displaying a flick knife in a shop window with a price ticket is an invitation to treat, not an offer for sale — so no criminal offence was committed under the Restriction of Offensive Weapons Act 1959.