201
12/12/1989
RPI 999
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: 12/12/1989. We update with every new RPI gazette, published weekly.
Applicants
RUDOLF WIEDERWALD [BR]
Inventors
W. [. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
12/12/1989
RPI 999
#17.1
06/20/1989
RPI 974
#16.1
03/28/1989
RPI 962
#13.1
11/01/1988
RPI 941
07/19/1988
RPI 926
04/07/1987
RPI 859
#12.2
12/02/1986
RPI 841
#9.2
07/29/1986
RPI 823
#5.1
02/26/1985
RPI 749
#4.1
10/02/1984
RPI 728
#3.1
12/27/1983
RPI 688
#2.1
07/06/1982
RPI 611
#21.1
12/07/1993
RPI 1201
#20.1
08/07/1990
RPI 1027
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