Concessão da patente
#16.1
07/28/1987
RPI 875
The letters patent expired on 09/24/1996: 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: 07/28/1987. We update with every new RPI gazette, published weekly.
Applicants
M. A. (pessoa física)
DE
Inventors
W. H. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
07/28/1987
RPI 875
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05/05/1987
RPI 863
#15.11
03/17/1987
RPI 856
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12/16/1986
RPI 843
#6.1
11/12/1985
RPI 786
05/07/1985
RPI 759
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11/27/1984
RPI 736
#6.1
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#5.1
06/22/1982
RPI 609
#4.1
02/02/1982
RPI 589
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: B21C 37/08; B23K 31/06.
03/27/2018
RPI 2464
#21.1
09/24/1996
RPI 1347
Same category
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