20.4
01/19/1988
RPI 900
The letters patent expired on 10/04/1994: 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: 01/19/1988. We update with every new RPI gazette, published weekly.
Applicants
WALSYWA MECANICA [BR]
Inventors
B. M. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
01/19/1988
RPI 900
01/19/1988
RPI 900
#16.1
08/25/1987
RPI 879
#13.1
03/04/1987
RPI 854
#9.1
09/30/1986
RPI 832
#4.1
12/24/1985
RPI 792
#3.1
09/24/1985
RPI 779
#2.1
05/08/1984
RPI 707
#21.1
10/04/1994
RPI 1244
02/16/1994
RPI 1211
05/15/1990
RPI 1018
From the same holder
Same category
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