o To be valid, the tender must be notified to the tenderer, no party can be linked to a tender of which it knew nothing= Taylor v Laird Sometimes the parties entering into a contract may want to ensure that an offer to conclude a contract is kept open for a specified period. An offer can be kept with an option contract for a fixed period. An option contract requires a certain consideration, for example.B payment agreement, in exchange for the ability to prevent the supplier from revoking the offer. This payment must be made separately from the consideration necessary for the constitution of the underlying contract. For example: o If a party only indicates the minimum price at which it would be willing to sell = ITT = Harvey v Facey – there was no offer, Facey`s testimony was only a price indication. If the supplier does not describe the prescribed terms and conditions, it must be expressed in a normal and reasonable manner, i.e. as would be the case in normal business. To Ardente v. Horan (1976), the defendants offered to sell their house to the applicant who agreed to buy the house, but he requested that certain furniture and furniture also be delivered with the land. The defendants refused to sell their furniture and furniture with the house and returned the agreement unsigned and the applicant`s surety. The applicant complained of a concrete achievement.
It was found that no valid contract had been concluded, as the defendants never accepted the counter-offer. A contract is considered effective if the receipt is final and unequivocal, conditional reductions are considered counter-offers. In addition, a supplier may include, when submitting a bid, the period during which the offer will be available. If the tenderer does not accept the tender within that specified period, the tender shall be deemed to be closed. An offer can only serve as the basis for a binding contract if it contains the essential conditions of the contract. For example, an offer valid as a minimum requirement for the purchase of contracts for goods must contain at least the following 4 conditions: delivery date, price, payment terms, which include the payment date and the detailed description of the item offered, including a fair description of the condition or type of service. If the minimum requirements are not met, an offer to sell is not considered by the courts as a legal offer, but as an advertisement. Under Dutch law, denunciation is, in most cases, an invitation to make an offer and not an offer.  (i) The death of the victim results in the extinguishment of an offer. Re Cheshire Banking Co (Duff`s Executors Case) (1886) 32 Ch D 301. The Tribunal found that the defendant`s undetered intention that he did not think he was making a real offer and that it was merely a joke was irrelevant because the applicant did not know the defendant`s uncommunicated intent.
 It does not matter what the parties actually intend to do, but what matters is what a normal person would hear in the circumstances.  The subjective element is quite easy to demonstrate. In that regard, the applicant did indeed consider that the defendant had made a legitimate offer. Treitel, in contract law, defines an offer as “the expression of the contractual will under certain conditions that are made for the purpose of making it mandatory as soon as it is accepted by the person to whom it is addressed”. · “The bidder has taken advantage of the bid” or in the form of a bid can be made by words or behavior. See Thornton v Shoe Lane Parking  2 QB 163. The revocation may be made directly or indirectly. In one case, the defendant promised the applicant that he would leave open an offer to sell land until the following Monday.  A third party informed the Claimant that the Respondent had made an offer to sell the same land to another party. . .