Concessão da patente
#16.1
07/31/1984
RPI 719
The letters patent expired on 12/14/1993: 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: 07/31/1984. We update with every new RPI gazette, published weekly.
Applicants
EXXON RESEARCH ENGINEERING CO
Inventors
L. R. (pessoa física)
T. R. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
07/31/1984
RPI 719
#13.1
05/02/1984
RPI 706
#9.1
01/10/1984
RPI 690
#6.1
04/12/1983
RPI 651
12/22/1981
RPI 583
#5.1
10/13/1981
RPI 573
#21.1
12/14/1993
RPI 1202
From the same holder
Same category
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