Concessão da patente
#16.1
12/27/1983
RPI 688
The letters patent expired on 05/03/1994: 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: 12/27/1983. We update with every new RPI gazette, published weekly.
Applicants
EXXON RESEARCH ENGINEERING CO
Inventors
B. D. (pessoa física)
H. B. (pessoa física)
L. T. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
12/27/1983
RPI 688
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10/04/1983
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11/03/1982
RPI 628
12/22/1981
RPI 583
#5.1
10/06/1981
RPI 572
#21.1
05/03/1994
RPI 1222
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