Concessão da patente
#16.1
12/27/1983
RPI 688
The letters patent expired on 07/13/1993: 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: 12/27/1983. We update with every new RPI gazette, published weekly.
Applicants
EXXON RESEARCH ENGINEERING CO
Inventors
K. R. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
12/27/1983
RPI 688
#13.1
10/04/1983
RPI 676
#9.1
06/14/1983
RPI 660
#7.1
08/10/1982
RPI 616
04/27/1982
RPI 601
04/20/1982
RPI 600
#7.1
02/24/1982
RPI 592
#21.1
07/13/1993
RPI 1180
From the same holder
Same category
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