Granted Patent
Utility
US 6,728,274 · App. 09/951,554
Multi-wavelength laser apparatus and method
Inventors:
João M. Sousa, Francisco Araujo, Paulo T. Guerreiro, Luis Alberto de Almeida Ferreira, Antonio Lobo Ribeiro, José R. Salcedo
Patented Case
View Patent ↗
Granted: Apr 27, 2004
Filed: Sep 14, 2001
Inventors
João M. Sousa
Francisco Araujo
Paulo T. Guerreiro
Luis Alberto de Almeida Ferreira
Antonio Lobo Ribeiro
José R. Salcedo
Assignee (at issue)
Multiwave Networks Portugal Lda
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.