Deferimento
#9.1
10/31/1989
RPI 993
Application data
Number
PI8402778Type
Filing
Publication
The letters patent expired on 07/08/2008: 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: 10/31/1989. We update with every new RPI gazette, published weekly.
Applicants
Hydro-Quebec
CA
Inventors
G. R. (pessoa física)
CA
M. G. (pessoa física)
CA
P. P. (pessoa física)
CA
Publications in the Brazilian Industrial Property Gazette (RPI).
#9.1
10/31/1989
RPI 993
#6.1
07/04/1989
RPI 976
09/15/1987
RPI 882
#4.1
12/24/1985
RPI 792
#3.1
05/14/1985
RPI 760
#2.1
08/14/1984
RPI 721
#21.1
Patente extinta em 08/06/99
07/08/2008
RPI 1957
#16.1
05/29/1990
RPI 1020
#13.1
03/06/1990
RPI 1008
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