Solicitação de exame técnico
#4.1
10/31/1989
RPI 993
Application data
Number
PI8605106Type
Filing
Publication
The letters patent expired on 07/22/2008: 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: 10/31/1989. We update with every new RPI gazette, published weekly.
Applicants
Sumitomo Chemical Company, Limited
JP
Inventors
K. M. (pessoa física)
K. Y. (pessoa física)
JP
R. N. (pessoa física)
JP
IPC Classification
Priority claims
JP
233000/85 · 10/17/1985
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
10/31/1989
RPI 993
#3.1
07/21/1987
RPI 874
#2.1
04/07/1987
RPI 859
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C08L 23/02; C08K 33/02; C08K 5/34.
03/27/2018
RPI 2464
#21.1
Patente extinta em 17/10/2001
07/22/2008
RPI 1959
#16.1
07/27/1993
RPI 1182
#13.1
05/18/1993
RPI 1172
#9.1
02/02/1993
RPI 1157
#15.11
09/15/1992
RPI 1137
#6.1
10/22/1991
RPI 1090
08/07/1990
RPI 1027
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.