Solicitação de exame técnico
#4.1
03/04/1987
RPI 854
Application data
Number
PI8601844Type
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: 03/04/1987. We update with every new RPI gazette, published weekly.
Applicants
Mitsui Chemicals, Inc.
JP
Mitsui Toatsu Chemicals, Incorporated
JP
Inventors
M. Y. (pessoa física)
JP
S. A. (pessoa física)
JP
S. K. (pessoa física)
JP
W. I. (pessoa física)
JP
Y. K. (pessoa física)
JP
IPC Classification
Priority claims
JP
086591/1985 · 04/24/1985
JP
75464/1986 · 04/03/1986
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
03/04/1987
RPI 854
#3.1
12/23/1986
RPI 844
#2.1
11/04/1986
RPI 837
#15.11
Procedimento automático de reclassificação. A classificação IPC anterior era C07C 103/133.
03/27/2018
RPI 2464
#21.1
Patente extinta em 24/04/2001
07/22/2008
RPI 1959
#25.1
Transferido por incorporação de: Mitsui Toatsu Chemicals, INC
10/06/1998
RPI 1450
#16.1
09/28/1993
RPI 1191
#13.1
08/17/1993
RPI 1185
#9.1
04/20/1993
RPI 1168
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.