Publicação do pedido de patente
#3.1
03/28/1989
RPI 962
Application data
Number
PI8804427Type
Filing
Publication
The letters patent expired on 09/02/2008: 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: 03/28/1989. We update with every new RPI gazette, published weekly.
Applicants
Minnesota Mining and Manufacturing Company
US
Inventors
C. B. (pessoa física)
US
T. J. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
03/28/1989
RPI 962
#2.1
01/31/1989
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Procedimento automático de reclassificação. A classificação IPC anterior era B01D 29/10.
03/27/2018
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09/02/2008
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