Pedido de patente depositado
#2.1
11/21/1989
RPI 996
Application data
Number
PI8904211Type
Filing
Publication
The letters patent expired on 12/22/2009: 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: 11/21/1989. We update with every new RPI gazette, published weekly.
Applicants
Alcoa Alumínio S/A
MG, BR
Inventors
L. S. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
11/21/1989
RPI 996
#21.1
Patente extinta em 22/08/2004
12/22/2009
RPI 2033
#16.1
07/30/1996
RPI 1339
#9.1
10/31/1995
RPI 1300
#7.1
04/25/1995
RPI 1273
#4.1
01/26/1993
RPI 1156
#3.1
02/26/1991
RPI 1056
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.