20.7
06/28/1988
RPI 923
The letters patent expired on 12/07/1993: 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: 06/28/1988. We update with every new RPI gazette, published weekly.
Applicants
Dupli-Door Comércio e Indústria Ltda.
SP, BR
Inventors
C. C. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
06/28/1988
RPI 923
#16.1
12/30/1986
RPI 845
#13.1
07/15/1986
RPI 821
#9.1
03/18/1986
RPI 804
#6.1
05/21/1985
RPI 761
#4.1
10/09/1984
RPI 729
#3.1
05/24/1983
RPI 657
#2.1
12/01/1981
RPI 580
#21.1
12/07/1993
RPI 1201
From the same holder
Same category
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