Solicitação de exame técnico
#4.1
07/21/1987
RPI 874
Application data
Number
PI8403114Type
Filing
Publication
The letters patent expired on 07/08/2008: 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: 07/21/1987. We update with every new RPI gazette, published weekly.
Applicants
Minnesota Mining and Manufacturing Company
US
Inventors
J. B. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
07/21/1987
RPI 874
#3.1
06/11/1985
RPI 764
#2.1
09/04/1984
RPI 724
#21.1
Patente extinta em 26/06/99
07/08/2008
RPI 1957
#16.1
09/24/1991
RPI 1086
#13.1
05/28/1991
RPI 1069
#9.1
02/13/1991
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From the same holder
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