20.7
07/11/1989
RPI 977
The patent was granted on 08/28/1984 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.
Talk to a specialistLatest action published by the INPI: 07/11/1989. We update with every new RPI gazette, published weekly.
Applicants
General Refractories Company
US
Inventors
M. J. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
07/11/1989
RPI 977
#16.1
08/28/1984
RPI 723
#13.1
06/12/1984
RPI 712
#9.1
02/28/1984
RPI 697
#6.1
08/09/1983
RPI 668
#18.2
09/25/1990
RPI 1034
From the same holder
Same category
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