Concessão da patente
#16.1
07/25/1989
RPI 979
The letters patent expired on 06/13/1995: 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: 07/25/1989. We update with every new RPI gazette, published weekly.
Applicants
A. W. (pessoa física)
SP, BR
Inventors
A. W. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
07/25/1989
RPI 979
#13.1
01/10/1989
RPI 951
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09/27/1988
RPI 936
#15.11
12/22/1987
RPI 896
#6.1
12/22/1987
RPI 896
#4.1
08/26/1986
RPI 827
#3.1
06/10/1986
RPI 816
#2.1
01/29/1985
RPI 745
#15.11
Reclassificação automática - A classificação anterior era: F21V 7/22
10/05/2021
RPI 2648
#21.1
06/13/1995
RPI 1280
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Same category
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