Concessão da patente
#16.1
06/27/1989
RPI 975
Application data
Number
PI8301619Type
Filing
Publication
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: 06/27/1989. We update with every new RPI gazette, published weekly.
Applicants
Minnesota Mining and Manufacturing Company
US
Inventors
H. B. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
06/27/1989
RPI 975
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01/24/1989
RPI 953
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10/04/1988
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RPI 911
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12/24/1985
RPI 792
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12/06/1983
RPI 685
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05/17/1983
RPI 656
#21.1
Patente extinta em 28/03/98
07/01/2008
RPI 1956
From the same holder
Same category
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