6.2
05/30/1989
RPI 971
Application data
Number
PI8504315Type
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
Sumitomo Electric Industries, Ltd
JP
Inventors
K. Y. (pessoa física)
JP
K. O. (pessoa física)
JP
T. A. (pessoa física)
JP
Y. N. (pessoa física)
JP
Y. Y. (pessoa física)
JP
IPC Classification
Priority claims
JP
188636/84 · 09/07/1984
JP
215397/84 · 10/15/1984
JP
218948/84 · 10/17/1984
Publications in the Brazilian Industrial Property Gazette (RPI).
05/30/1989
RPI 971
#4.1
10/21/1986
RPI 835
#3.1
07/01/1986
RPI 819
#2.1
10/29/1985
RPI 784
#21.1
Patente extinta em 06/09/2000
07/15/2008
RPI 1958
#16.1
05/31/1994
RPI 1226
#9.1
09/28/1993
RPI 1191
#6.1
05/18/1993
RPI 1172
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