Publicação do pedido de patente
#3.1
12/15/1987
RPI 895
Application data
Number
PI8700441Type
Filing
Publication
The letters patent expired on 07/29/2008: 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: 12/15/1987. We update with every new RPI gazette, published weekly.
Applicants
T. C. (pessoa física)
ZA
T. C. (pessoa física)
ZA
Inventors
C. B. (pessoa física)
ZA
K. T. (pessoa física)
ZA
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
12/15/1987
RPI 895
#2.1
06/02/1987
RPI 867
#15.11
Procedimento automático de reclassificação. A classificação IPC anterior era B01D 37/06.
03/27/2018
RPI 2464
#21.1
Patente extinta em 30/01/2002
07/29/2008
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12/13/1994
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11/30/1993
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05/22/1990
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