Solicitação de exame técnico
#4.1
12/05/1989
RPI 998
The letters patent expired on 09/25/2001: 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
Duratex S/A
SP, BR
Inventors
P. G. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
12/05/1989
RPI 998
#3.2
07/04/1989
RPI 976
#2.1
05/23/1989
RPI 970
#21.1
Patente extinta em 08/11/98 conforme disposto no artigo 24 da Lei 5772/71 (CPI).
09/25/2001
RPI 1603
#16.1
08/04/1992
RPI 1131
#13.1
02/18/1992
RPI 1107
#15.11
12/17/1991
RPI 1098
#9.1
10/15/1991
RPI 1089
From the same holder
Same category
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