Concessão da patente
#16.1
08/29/1989
RPI 984
The letters patent expired on 03/19/1996: 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: 08/29/1989. We update with every new RPI gazette, published weekly.
Applicants
Dersa-Desenvolvimento Rodoviário S.A.
SP, BR
Inventors
N. S. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
08/29/1989
RPI 984
#13.1
01/17/1989
RPI 952
10/25/1988
RPI 940
#12.1
05/31/1988
RPI 919
#9.1
02/09/1988
RPI 903
#6.1
06/23/1987
RPI 870
#21.1
03/19/1996
RPI 1320
07/31/1990
RPI 1026
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