6.2
05/30/1989
RPI 971
Application data
Number
PI8501293Type
Filing
Publication
The letters patent expired on 07/15/2008: 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: 05/30/1989. We update with every new RPI gazette, published weekly.
Applicants
IBM [US]
Inventors
G. I. (pessoa física)
US
W. M. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
05/30/1989
RPI 971
#4.1
10/06/1987
RPI 885
#3.1
11/19/1985
RPI 787
#2.1
06/11/1985
RPI 764
#21.1
Patente extinta em 22/03/2000
07/15/2008
RPI 1958
#16.1
10/27/1992
RPI 1143
#15.11
10/06/1992
RPI 1140
#13.1
05/05/1992
RPI 1118
#9.1
12/10/1991
RPI 1097
From the same holder
Same category
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