20.7
09/30/1986
RPI 832
The patent was granted on 11/10/1981 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: 09/30/1986. We update with every new RPI gazette, published weekly.
Applicants
M & T CHEMICALS INC
Inventors
E. W. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
09/30/1986
RPI 832
#20.1
09/23/1986
RPI 831
#16.1
11/10/1981
RPI 577
#18.2
09/18/1990
RPI 1033
From the same holder
Same category
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