Solicitação de exame técnico
#4.1
09/27/1988
RPI 936
Application data
Number
PI8705834Type
Filing
Publication
The letters patent expired on 07/29/2008: 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: 09/27/1988. We update with every new RPI gazette, published weekly.
Applicants
Enichem Synthesis S.p.A
IT
Eniricerche S.p.A.
IT
Snamprogetti S.p.A.
IT
Inventors
A. E. (pessoa física)
IT
F. B. (pessoa física)
IT
G. B. (pessoa física)
IT
M. C. (pessoa física)
IT
U. R. (pessoa física)
IT
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
09/27/1988
RPI 936
#3.1
05/31/1988
RPI 919
#2.1
02/09/1988
RPI 903
#15.11
Procedimento automático de reclassificação. A classificação IPC anterior era C01B 33/28.
03/27/2018
RPI 2464
#21.1
Patente extinta em 22/10/2002
07/29/2008
RPI 1960
#16.1
08/30/1994
RPI 1239
#13.1
03/08/1994
RPI 1214
#9.1
09/28/1993
RPI 1191
#6.1
10/27/1992
RPI 1143
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.