What factors suggest that a display or distribution was for "experimental purposes"?

The indication that a display or distribution was for "experimental purposes" is best represented by the nature of the invention requiring further testing. This factor suggests that the invention is in a phase where additional validation, assessment, or modification based on real-world application and feedback is necessary. Such experimental activities are typically aimed at gathering data, refining the invention, and ensuring its viability before pursuing commercialization or patent protection.

This context is crucial in understanding why further testing aligns with the definition of experimental use. It implies that the invention is still under evaluation and not yet finalized or fully developed for regular market use, which is a key criterion differentiating experimental activity from public or commercial distribution.

While factors like monitoring by regulatory bodies and limitations to private sectors may contribute to the understanding of an experimental context, they do not inherently establish the need for further testing as clearly as the nature of the invention does. Public distribution, despite being extensive, suggests flexibility towards commercialization rather than experimental use if the invention is fully developed. Thus, the requirement for further testing directly correlates with the essence of limited experimental use as defined within patent law.