Contract Law Concepts

Key Definitions

  • Offeror: The person who makes an offer.

  • Offeree: The person to whom the offer is made.

  • Offer: An indication by one person to another of a willingness to enter into a contract, subject to specified terms.

Types of Offers

  • Express vs. Implied Offers: Offers can be expressed clearly or implied through conduct.

  • Directed Offers: Offers can be directed to an individual, a group, or all of the public.

Unilateral Contracts

  • Carlill v. Carbolic Smoke Ball Co.:

    • Defendants offered £100 to anyone using their product and contracting influenza.

    • Court ruled the advertisement constituted a binding offer to the public as it invited acceptance through performance.

Distinction: Offer vs. Invitation to Treat

  • Invitations to Treat: These are not offers but an invitation for others to make offers.

Categories of Invitations to Treat

  1. Advertisements: Generally invitations to treat.

    • Partridge v. Crittenden: Advertising bramble finches for sale as an invitation to treat.

    • Exception: Advertisements can be unilateral offers, e.g., Carlill v. Carbolic Smoke Ball Co.

  2. Auction Sales:

    • The auctioneer's call for bids is an invitation to treat; each bid is an offer.

    • Payne v. Cave: Bidder can withdraw before acceptance (hammer falls).

  3. Displays of Goods:

    • Display of goods in shops is an invitation to treat.

    • Fisher v. Bell: Display of a flick knife was not an offer, but an invitation to treat.

    • Pharmaceutical Society of Great Britain v. Boots Cash Chemists: Also held as an invitation to treat.

Key Legal Principles on Offers

  • Counter-Offers: Introduces new terms, voiding the original offer.

    • Hyde v. Wrench: Counter-offer rejected original offer.

  • Lapse of Time: Offers expire after a reasonable time.

    • Ramsgate Victoria Hotel v. Montefiori: Offer expired after several months.

  • Death of Offeror:

    • Offeree can accept if personal service isn't required and they are unaware of Offeror's death.

    • Ruling in Bradbury v. Morgan upheld acceptance post-death unless notified.

  • Revocation of Offers: Can revoke at any time before acceptance, must be communicated.

    • Byrne v. Van Tienhoven: Revocation must be communicated directly or through reliable third parties.

Acceptance of Offers

  • Unconditional Acceptance: Must match the terms of the offer exactly.

    • Behaviors and correspondence imply acceptance.

Acceptance Conditions

  1. Subject to Contract: Indicates intent is not legally binding until a formal contract exists.

  2. Conduct of Acceptance: Example Brogden v Metropolitan established acceptance through conduct of ordering coal.

Tenders

  • Invitation to Tender: Each tender submitted is considered an offer.

    • Spencer v. Harding: No obligation to accept the highest tender unless explicitly stated.

Postal Acceptance

  • Acceptance becomes effective when the letter is posted (Adams v. Lindsell).

Intention to Create Legal Relations

  • Certain agreements are presumed not intended to be legally binding (e.g., social agreements).

    • Domestic Agreements: Balfour v. Balfour presumed not legally binding.

    • Commercial Agreements: Presumed intention to create legal relations unless stated otherwise (Esso Petroleum case).

Important Cases

  • Carlill v. Carbolic Smoke Ball Co.: Unilateral offers accepted by performance.

  • Hyde v. Wrench: Counter-offer nullifies original offer.

  • Adams v. Lindsell: Acceptance by post is effective when posted.

  • Balfour v. Balfour: Domestic agreements presumed non-binding.

  • Esso Petroleum v. Commissioners of Customs & Excise: Established presumption of intention in commercial agreements.

Conclusion

Understanding the distinctions between offers, invitations to treat, and their legal implications is crucial. Offers must be accepted unconditionally, and intention to create legal relations varies based on the context of agreements. Key cases illuminate these principles and guide contract law outcomes.