Pedido de patente depositado
#2.1
11/28/1989
RPI 997
Application data
Number
PI8904226Type
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: 11/28/1989. We update with every new RPI gazette, published weekly.
Applicants
Universidade Estadual de Campinas - Unicamp
SP, BR
Inventors
A. T. (pessoa física)
BR
G. B. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
11/28/1989
RPI 997
#21.1
Patente extinta em 23/08/2004
12/22/2009
RPI 2033
#16.1
11/28/1995
RPI 1304
#13.1
07/11/1995
RPI 1284
#9.1
02/21/1995
RPI 1264
#4.1
02/02/1993
RPI 1157
#3.2
10/09/1990
RPI 1036
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.