Concessão da patente
#16.1
09/30/1986
RPI 832
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: 09/30/1986. We update with every new RPI gazette, published weekly.
Applicants
Duratex S.A.
SP, BR
Inventors
E. B. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
09/30/1986
RPI 832
#13.1
06/24/1986
RPI 818
#9.1
02/12/1986
RPI 799
#15.11
09/24/1985
RPI 779
#6.1
07/23/1985
RPI 770
07/09/1985
RPI 768
#15.11
04/16/1985
RPI 756
#15.11
09/25/1984
RPI 727
#7.1
05/08/1984
RPI 707
#5.1
12/06/1983
RPI 685
#4.1
07/19/1983
RPI 665
#21.1
12/07/1993
RPI 1201
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