Context: Provided some additional requirements are met (e.g. providing an authoritative statement of the archivist), the United States patent office and the European Patent Office will accept date stamps from the Internet Archive as evidence of when a given Web page was accessible to the public. These dates are used to determine if a Web page is available as prior art for instance in examining a patent application.

Question: When are Internet Archive timestamps useful for patent offices?
Answer: in examining a patent application

Question: What is an example of a condition that must be met for the Internet Archive data to be considered acceptable for submission to patent offices in the US and Europe?
Answer: authoritative statement of the archivist

Question: When are Internet Archive timestamps harmful for patent offices?
Answer: Unanswerable

Question: What is an example of a condition that must be met for the Internet Archive data to be considered acceptable for submission to patent offices on the Web?
Answer: Unanswerable

Question: What are used to determine if a patent is available?
Answer: Unanswerable

Question: What will accept date stamps from the public?
Answer: Unanswerable

Question: What does the patent offices require before they accept applications for employment?
Answer: Unanswerable