20.7
03/04/1986
RPI 802
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: 03/04/1986. We update with every new RPI gazette, published weekly.
Applicants
S. D. (pessoa física)
Inventors
E. B. (pessoa física)
IPC Classification
No IPC classification.
Publications in the Brazilian Industrial Property Gazette (RPI).
03/04/1986
RPI 802
02/18/1986
RPI 800
#16.1
06/25/1985
RPI 766
#13.1
04/09/1985
RPI 755
#9.1
12/11/1984
RPI 738
#4.1
12/27/1983
RPI 688
#3.1
10/11/1983
RPI 677
#2.1
04/13/1982
RPI 599
#21.1
12/07/1993
RPI 1201
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