20.10
09/12/1989
RPI 986
The letters patent expired on 07/27/1993: 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: 09/12/1989. We update with every new RPI gazette, published weekly.
Applicants
CABOT CORP
Inventors
H. E. (pessoa física)
M. A. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
09/12/1989
RPI 986
09/12/1989
RPI 986
08/01/1989
RPI 980
#16.1
03/29/1983
RPI 649
#13.1
11/30/1982
RPI 632
#9.1
07/13/1982
RPI 612
#6.1
12/29/1981
RPI 584
#21.1
07/27/1993
RPI 1182
From the same holder
Same category
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