Concessão da patente
#16.1
09/27/1988
RPI 936
The letters patent expired on 05/31/1994: 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: 09/27/1988. We update with every new RPI gazette, published weekly.
Applicants
EXXON RESEARCH ENGINEERING CO
Inventors
C. G. (pessoa física)
H. G. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
09/27/1988
RPI 936
#13.1
07/19/1988
RPI 926
#9.1
03/15/1988
RPI 908
#7.1
01/31/1984
RPI 693
06/22/1982
RPI 609
#5.1
04/06/1982
RPI 598
#21.1
05/31/1994
RPI 1226
From the same holder
Same category
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