20.4
09/01/1987
RPI 880
The letters patent expired on 11/22/1994: 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: 09/01/1987. We update with every new RPI gazette, published weekly.
Applicants
SPUMA PAC CIA BRASILEIRA DE EM [BR]
Inventors
L. D. (pessoa física)
L. D. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
09/01/1987
RPI 880
#16.1
12/30/1986
RPI 845
08/05/1986
RPI 824
07/29/1986
RPI 823
#13.1
07/15/1986
RPI 821
#9.1
03/25/1986
RPI 805
#6.1
11/19/1985
RPI 787
#4.1
02/20/1985
RPI 748
#3.1
05/31/1983
RPI 658
#2.1
12/15/1981
RPI 582
#21.1
11/22/1994
RPI 1251
From the same holder
Same category
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