Solicitação de exame técnico
#4.1
10/31/1989
RPI 993
Application data
Number
PI8605207Type
Filing
Publication
The patent was granted on 08/31/1993 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.
Talk to a specialistLatest action published by the INPI: 10/31/1989. We update with every new RPI gazette, published weekly.
Applicants
Shell Internationale Research Maatschappij B.V
NL
Inventors
A. K. (pessoa física)
W. S. (pessoa física)
NL
IPC Classification
Priority claims
GB
8526539 · 10/28/1985
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
10/31/1989
RPI 993
#3.1
07/28/1987
RPI 875
#2.1
04/07/1987
RPI 859
#18.2
10/03/1995
RPI 1296
#16.1
08/31/1993
RPI 1187
#13.1
06/15/1993
RPI 1176
#9.1
03/02/1993
RPI 1161
#6.1
09/17/1991
RPI 1085
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.