Solicitação de exame técnico
#4.1
04/12/1988
RPI 912
Application data
Number
PI8603246Type
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: 04/12/1988. We update with every new RPI gazette, published weekly.
Applicants
Kurosaki Refractories Co., Ltd.
JP
N. C. (pessoa física)
JP
Inventors
K. [. (pessoa física)
O. [. (pessoa física)
S. [. (pessoa física)
S. [. (pessoa física)
Pessoa física
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
04/12/1988
RPI 912
#3.1
02/24/1987
RPI 853
#2.1
01/06/1987
RPI 846
#21.1
Patente extinta em 10/07/2001
07/22/2008
RPI 1959
#15.11
03/28/1995
RPI 1269
#16.1
08/31/1993
RPI 1187
#9.1
04/20/1993
RPI 1168
#6.1
11/24/1992
RPI 1147
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.