Concessão da patente
#16.1
11/29/1988
RPI 945
The letters patent expired on 04/25/1995: 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: 11/29/1988. We update with every new RPI gazette, published weekly.
Applicants
LUBRIZOL CORP
Inventors
L. R. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
11/29/1988
RPI 945
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09/06/1988
RPI 933
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05/17/1988
RPI 917
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09/22/1987
RPI 883
#4.1
03/30/1982
RPI 597
#21.1
04/25/1995
RPI 1273
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