Publicação do pedido de patente
#3.1
11/28/1989
RPI 997
Application data
Number
PI8901934Type
Filing
Publication
The letters patent expired on 12/15/2009: 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: 11/28/1989. We update with every new RPI gazette, published weekly.
Applicants
S. V. (pessoa física)
NL
Shell Internationale Research Maatschappij B.V
NL
Inventors
E. G. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
11/28/1989
RPI 997
#2.1
05/30/1989
RPI 971
#21.1
Patente extinta em 24/04/2004
12/15/2009
RPI 2032
#16.1
07/30/1996
RPI 1339
#15.11
10/24/1995
RPI 1299
#9.1
10/10/1995
RPI 1297
#6.1
04/25/1995
RPI 1273
#4.1
11/12/1991
RPI 1093
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.