Pedido de licença compulsória
#20.1
12/05/1989
RPI 998
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: 12/05/1989. We update with every new RPI gazette, published weekly.
Applicants
Amchem Products Inc.,
US
Inventors
No inventors listed.
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#20.1
12/05/1989
RPI 998
12/05/1989
RPI 998
#13.1
06/22/1982
RPI 609
#9.1
03/02/1982
RPI 593
#15.11
Procedimento automático de reclassificação. A classificação IPC anterior era C23F 7/00.
03/27/2018
RPI 2464
#21.1
07/27/1993
RPI 1182
From the same holder
Same category
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