"upon the expiration" is a grammatically correct phrase and can be used in written English.
It means "at the end of a specified time period." Example: Upon the expiration of the lease, the tenants were required to vacate the premises.
Upon the expiration of his sentence, Sacheverell was granted a wealthy parish in London by Queen Anne.
Upon the expiration of the old lease, the new owner offered a new lease for an additional year, which I accepted.
Karl-Heinz Rummenigge, Bayern's chief executive, confirmed last month that Guardiola would be leaving the club upon the expiration of his current contract this summer.
Spanish-language albums recorded for RMM by Marc Anthony, including "Todo a Su Tiempo" and "Contra La Corriente," will revert to Universal Music upon the expiration of the current distribution arrangement, the companies said.
Sherwin Belkin, a Manhattan lawyer who represents landlords, said that if the Division of Housing and Community Renewal issues an order of deregulation, the order deregulates the apartment upon the expiration of the tenant's current lease.
The following year, upon the expiration of a ban imposed by the Securities and Exchange Commission as part of a 2006 settlement, she rejoined the company's board, and in 2012 she resumed her duties as chairman.
Asquith declared war on the German Empire on 1914, in response to the demands for military passage that were forced upon Belgium by Germany, and the expiration of Britain's own ultimatum at that day.
The initial continuous-state at (t_d) upon entering state d is inherited from the final continuous-state arrived at the expiration of the holding time at the originating state f or m defined by ({phi ^{m/f}}).
The expiration date is 9/11".
Even with the expiration, most operations have continued uninterrupted.
The move precedes the expiration of textile quotas Jan . 1
