Concessão da patente
#16.1
03/31/1987
RPI 858
The letters patent expired on 11/22/1994: 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: 03/31/1987. We update with every new RPI gazette, published weekly.
Applicants
MASAYUKI UEGAMA [BR]
Inventors
U. [. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
03/31/1987
RPI 858
#13.1
09/23/1986
RPI 831
#9.1
05/27/1986
RPI 814
#6.1
11/05/1985
RPI 785
#4.1
03/26/1985
RPI 753
#3.1
11/27/1984
RPI 736
#2.1
06/07/1983
RPI 659
#21.1
11/22/1994
RPI 1251
From the same holder
Same category
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