Publicação do pedido de patente
#3.1
05/03/1988
RPI 915
Application data
Number
PI8704767Type
Filing
Publication
The letters patent expired on 07/29/2008: 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: 05/03/1988. We update with every new RPI gazette, published weekly.
Applicants
Alcan International Limited
CA
Lanxide Technology Company, LP
US
Inventors
E. P. (pessoa física)
US
S. P. (pessoa física)
CA
IPC Classification
Priority claims
US
089,376 · 08/26/1987
US
908116 · 09/16/1986
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
05/03/1988
RPI 915
#2.1
11/24/1987
RPI 892
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C04B 41/87; C04B 35/65; C04B 35/60.
03/27/2018
RPI 2464
#21.1
Patente extinta em 15/09/2002
07/29/2008
RPI 1960
#16.1
03/26/1996
RPI 1321
#13.1
10/31/1995
RPI 1300
#9.1
06/20/1995
RPI 1281
#6.1
08/16/1994
RPI 1237
#4.1
12/11/1990
RPI 1045
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.