Concessão da patente
#16.1
09/26/1989
RPI 988
The letters patent expired on 09/21/1993: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 09/26/1989. We update with every new RPI gazette, published weekly.
Applicants
Freeport Minerals Company, firma industrial norte-americana
US
Inventors
T. W. (pessoa física)
US
W. J. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
09/26/1989
RPI 988
#13.1
05/30/1989
RPI 971
#9.1
01/10/1989
RPI 951
#6.1
08/09/1988
RPI 929
#15.6
08/04/1987
RPI 876
#15.3
04/22/1987
RPI 861
#21.1
09/21/1993
RPI 1190
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.