Solicitação de exame técnico
#4.1
04/18/1989
RPI 965
Application data
Number
PI8603094Type
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: 04/18/1989. We update with every new RPI gazette, published weekly.
Applicants
Portals Engineering Limited
GB
Inventors
P. B. (pessoa física)
GB
IPC Classification
Priority claims
GB
85 16882 · 07/03/1985
GB
85 17308 · 07/09/1985
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
04/18/1989
RPI 965
#3.1
02/17/1987
RPI 852
#2.1
12/16/1986
RPI 843
#21.1
Patente extinta em 02/07/2001
07/22/2008
RPI 1959
#18.2
10/03/1995
RPI 1296
#16.1
06/26/1990
RPI 1024
#13.1
04/24/1990
RPI 1015
#9.1
01/02/1990
RPI 1000
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.