14.4
12/13/1988
RPI 947
Application data
Number
PI8804210Type
Filing
Publication
The letters patent expired on 09/02/2008: 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: 12/13/1988. We update with every new RPI gazette, published weekly.
Applicants
Elf Atochem S.A
FR
Norsolor
FR
Inventors
G. R. (pessoa física)
FR
P. H. (pessoa física)
FR
IPC Classification
Priority claims
FR
87/11758 · 08/20/1987
Publications in the Brazilian Industrial Property Gazette (RPI).
12/13/1988
RPI 947
#21.1
Patente extinta em 11/08/2003
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