20.11
09/12/1989
RPI 986
Application data
Number
PI8201669Type
Filing
Publication
The letters patent expired on 07/01/2008: 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: 09/12/1989. We update with every new RPI gazette, published weekly.
Applicants
F. A. (pessoa física)
RJ, BR
M. A. (pessoa física)
RJ, BR
Inventors
M. A. (pessoa física)
BR
IPC Classification
No IPC classification.
Publications in the Brazilian Industrial Property Gazette (RPI).
09/12/1989
RPI 986
08/01/1989
RPI 980
#16.1
11/24/1987
RPI 892
#9.1
07/14/1987
RPI 873
#6.1
11/25/1986
RPI 840
05/27/1986
RPI 814
#6.1
04/09/1985
RPI 755
#15.11
02/21/1984
RPI 696
#4.1
02/21/1984
RPI 696
#3.1
11/08/1983
RPI 681
#2.1
05/11/1982
RPI 603
#21.1
Patente extinta em 24/03/97
07/01/2008
RPI 1956
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