Carta-patente expirada
#21.1
Patente extinta em 10/07/2011
01/02/2013
RPI 2191
Application data
Number
PI8906275Type
Filing
Publication
The letters patent expired on 01/02/2013: 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: 01/02/2013. We update with every new RPI gazette, published weekly.
Applicants
Idemitsu Kosan CO., LTD.
JP
Inventors
H. N. (pessoa física)
JP
M. K. (pessoa física)
JP
N. S. (pessoa física)
JP
Y. K. (pessoa física)
JP
IPC Classification
Priority claims
JP
051875/1989 · 03/06/1989
JP
052822/1989 · 03/07/1989
JP
078171/1989 · 03/31/1989
JP
100186/1989 · 04/21/1989
JP
306920/1988 · 12/06/1988
JP
313053/1988 · 12/13/1988
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 10/07/2011
01/02/2013
RPI 2191
#16.1
07/10/2001
RPI 1592
#15.11
Alterada a classificação para Int. Cl. 7 C10M 107/34; C09K 5/04.
05/02/2001
RPI 1582
#9.1
02/28/2001
RPI 1573
#7.1
09/12/2000
RPI 1549
#6.1
04/06/1999
RPI 1474
#6.1
07/14/1998
RPI 1438
#4.1
02/26/1991
RPI 1056
#3.1
08/21/1990
RPI 1029
#2.1
03/06/1990
RPI 1008
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.