Granted Patent
Utility
US 6,197,850 · App. 09/043,350
Process for fabricating couplings and other elements for hot topping and supply for castiron molds, and formulation for producing such couplings and elements
Inventors:
Tomas Posada Fernandez, Rafael Sampedro Gerenabarrena, Francisco Jose Diaz Maruri, Jaime Prat Urrestieta, Jose Joaquin Lasa Urteaga, Luis Iglesias Hernandez
Patented Case
View Patent ↗
Granted: Mar 6, 2001
Filed: Sep 17, 1998
Inventors
Tomas Posada Fernandez
Rafael Sampedro Gerenabarrena
Francisco Jose Diaz Maruri
Jaime Prat Urrestieta
Jose Joaquin Lasa Urteaga
Luis Iglesias Hernandez
Assignee (at issue)
Kemen Recupac S.A.
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.