Publicação do pedido de patente
#3.1
05/31/1988
RPI 919
The letters patent expired on 07/01/2008: 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: 05/31/1988. We update with every new RPI gazette, published weekly.
Applicants
Minnesota Mining and Manufacturing Company
US
Inventors
L. Z. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
05/31/1988
RPI 919
#2.1
04/28/1987
RPI 862
#15.11
Procedimento automático de reclassificação. A classificação IPC anterior era B65B 85/671.
03/27/2018
RPI 2464
#21.1
Patente extinta em 28/10/1996
07/01/2008
RPI 1956
#16.1
08/04/1992
RPI 1131
#9.1
12/10/1991
RPI 1097
#6.1
08/06/1991
RPI 1079
#15.11
07/02/1991
RPI 1074
#6.1
01/15/1991
RPI 1050
#4.1
05/01/1990
RPI 1016
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