Concessão da patente
#16.1
09/26/1989
RPI 988
Application data
Number
PI8406997Type
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: 09/26/1989. We update with every new RPI gazette, published weekly.
Applicants
Minnesota Mining and Manufacturing Company
US
Inventors
R. S. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
09/26/1989
RPI 988
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08/15/1989
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04/18/1989
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#6.1
10/25/1988
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#4.1
06/16/1987
RPI 869
#1.3
07/02/1985
RPI 767
#21.1
Patente extinta em 25/06/99
07/08/2008
RPI 1957
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