Pedido de patente depositado
#2.1
10/10/1989
RPI 990
Application data
Number
PI8903451Type
Filing
Publication
The letters patent expired on 12/26/2012: 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: 10/10/1989. We update with every new RPI gazette, published weekly.
Applicants
Minnesota Mining and Manufacturing Company
US
Inventors
J. W. (pessoa física)
US
S. P. (pessoa física)
IT
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
10/10/1989
RPI 990
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: G03C 5/17; G03C 1/84.
03/27/2018
RPI 2464
#21.1
Patente extinta em 13/07/2009
12/26/2012
RPI 2190
#16.1
05/27/1997
RPI 1382
#13.1
03/11/1997
RPI 1371
#9.1
07/16/1996
RPI 1337
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01/31/1995
RPI 1261
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08/30/1994
RPI 1239
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05/12/1992
RPI 1119
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03/06/1990
RPI 1008
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