SEC. 15. A patent shall lapse:
(a) Upon the termination of the period of seventeen years from and after the date of the application;
(b) If, five years after a patent has issued, the invention or discovery for which it was granted has not yet been put to profit;
(c) If the tax for two consecutive years has not been paid in the case referred to in the second paragraph of section four.
Compiled from an official source version. Later amendments or repeals may not be reflected; the official text prevails. · Read the official text ↗ · Data as of July 4, 2026
CitationAct No. 2793 Section 15 (LawPlayer, data as of July 4, 2026)
Source: Supreme Court E-Library, Republic of the Philippines. Philippine laws are public documents (works of the government).
