6.2
05/30/1989
RPI 971
Application data
Number
PI8500428Type
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
Armco, Inc.
US
Inventors
L. E. (pessoa física)
US
R. S. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
05/30/1989
RPI 971
#4.1
09/15/1987
RPI 882
#3.1
09/10/1985
RPI 777
#2.1
04/23/1985
RPI 757
#21.1
Patente extinta em 31/01/2000
07/15/2008
RPI 1958
#16.1
09/28/1993
RPI 1191
#13.1
08/03/1993
RPI 1183
#9.1
04/13/1993
RPI 1167
#6.1
07/14/1992
RPI 1128
#7.1
11/27/1990
RPI 1043
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Same category
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