Solicitação de exame técnico
#4.1
02/21/1989
RPI 957
Application data
Number
PI8601097Type
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: 02/21/1989. We update with every new RPI gazette, published weekly.
Applicants
T. H. (pessoa física)
ZA
Inventors
T. H. (pessoa física)
ZA
IPC Classification
Priority claims
ZA
85/1921 · 03/14/1985
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
02/21/1989
RPI 957
#3.1
01/13/1987
RPI 847
#2.1
08/26/1986
RPI 827
#21.1
Patente extinta em 13/03/2001
07/22/2008
RPI 1959
#15.11
09/22/1992
RPI 1138
#16.1
11/26/1991
RPI 1095
#15.11
11/12/1991
RPI 1093
#13.1
09/10/1991
RPI 1084
#9.1
05/28/1991
RPI 1069
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.