Solicitação de exame técnico
#4.1
02/08/1989
RPI 955
Application data
Number
PI8603227Type
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: 02/08/1989. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
F. D. (pessoa física)
H. S. (pessoa física)
J. S. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
02/08/1989
RPI 955
#3.1
02/24/1987
RPI 853
#2.1
12/30/1986
RPI 845
#21.1
Patente extinta em 10/07/2001
07/22/2008
RPI 1959
#16.1
10/26/1993
RPI 1195
#13.1
08/24/1993
RPI 1186
#9.1
04/27/1993
RPI 1169
#6.1
09/29/1992
RPI 1139
#7.1
01/14/1992
RPI 1102
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.