"has elapsed after" is a perfectly acceptable phrase that can be used in written English.
For example, you can use it in a sentence such as: "Two years have elapsed after the start of the project."
Underwriters of new issues do not issue research reports until a quiet period has elapsed after the offering is sold.
The South African constitution bars convicted people from taking up elected office until five years has elapsed after their completed sentence.
Much of our existence consists of efforts aimed at making sure that things don't go wrong, fall apart, break down or stop running until a decent interval has elapsed after their manufacture or installation.
L. 108 136 inserted before period at end "or, if over sooner, a period of 14 days has elapsed after the date on which a copy of the notification is provided in an electronic medium pursuant to section 480 of this title".
This type of gas is young (i.e., not much time has elapsed after the generation of 222Rn atoms) and observed typically in fumarole gases with high ascent velocities (Koike et al. 2009, 2014).
Usually, a severe reaction has occurred only when a long period has elapsed after vaccination (1 ).
Until 1993, sex crimes could not be prosecuted in California after three years had elapsed after the offense.
Speaking to the dissident Burmese website, Mizzima, Frank Smithius, the head of Médecins sans Frontières' Burma team, said: "Four weeks have elapsed after the storm and I think it is quite sad that many villages have not yet received aid".
A prize competition under this paragraph may offer a prize in an amount greater than $1,000,000 only after 30 days have elapsed after written notice has been transmitted to the Committee on Commerce, Science, and Transportation of the Senate and the Committees on Transportation and Infrastructure and Science, Space, and Technology of the House of Representatives.
People with symptoms are advised to stay away from school, nursery or work until four days have elapsed after the development of a rash.
When two generation times have elapsed after the addition of \ \ce{^{14}N}\) half-labeled and unlabeled DNA are present in equal amounts" (p. 676).
