Concessão da patente
#16.1
11/24/1987
RPI 892
The letters patent expired on 09/27/1994: 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: 11/24/1987. We update with every new RPI gazette, published weekly.
Applicants
VALVULAS SCHURADER DO BRASIL S [BR]
Inventors
P. L. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
11/24/1987
RPI 892
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06/23/1987
RPI 870
#9.1
02/17/1987
RPI 852
#6.1
07/15/1986
RPI 821
#4.1
11/13/1984
RPI 734
#3.2
04/17/1984
RPI 704
#2.1
01/10/1984
RPI 690
#21.1
09/27/1994
RPI 1243
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