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Part 2 - Offers vs Invitations to Treat

Below are the most relevant principles and leading cases regarding Offers vs other steps in the negotiation process:

Storer v Manchester City Council: An offer is an expression of a willingness to contract on certain terms upon acceptance.

Gibson v Manchester City Council: Negotiations to enter into a contract are invitations to treat but not offers

Carlill v Carbolic Smoke Ball Co: Advertisements for unilateral contracts can amount to offers even when addressed to the general public if the advertisement objectively person making the advertisement intends to be bound by it.

Partridge v Crittenden: Advertisements in printed publications of goods at certain price are normally considered invitations to treat and are not offers.

Fisher v Bell: Price-marked goods on display on the shelves or on windows or shops are normally considered invitations to treat and are not offers.

Pharmaceutical Society of GB v Boots Cash Chemists: Goods sold on self-service basis are invitations to treat, the customer makes the offer to buy at the cash register.

Walford v Miles: Agreements to negotiate are invitations to treat and do not amount to a binding contract, instead they are regarded as pre-contractual negotiations.

Harvela Investments Ltd v Royal Trust Co of Canada Ltd: Generally tenders are invitations to treat unless explicit language to accept the offer is stated (e.g., Harvela).

Blackpool Fylde Areo Club v Blackpool Borough Council: Invitations to tender include an implicit offer to consider all tenders correctly submitted but not necessarily to accept one.

Tiverton Estates Ltd v Wearwell Ltd: The statement “subject to contract” creates a strong presumption against there being a contract at the particular stage of contractual negotiations.