Solicitação de exame técnico
#4.1
12/08/1987
RPI 894
Application data
Number
PI8406655Type
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: 12/08/1987. We update with every new RPI gazette, published weekly.
Applicants
Minnesota Mining and Manufacturing Company
US
Inventors
B. R. (pessoa física)
US
D. P. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
12/08/1987
RPI 894
#3.1
10/22/1985
RPI 783
#2.1
03/12/1985
RPI 751
#21.1
Patente extinta em 21/12/99
07/08/2008
RPI 1957
#16.1
08/27/1991
RPI 1082
#13.1
05/14/1991
RPI 1067
#9.1
01/22/1991
RPI 1051
From the same holder
Same category
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