Concessão da patente
#16.1
03/17/1987
RPI 856
Application data
Number
PI8300941Type
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: 03/17/1987. We update with every new RPI gazette, published weekly.
Applicants
Koa Oil Company, Limited
JP
Inventors
N. K. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
03/17/1987
RPI 856
#13.1
11/04/1986
RPI 837
#9.1
07/08/1986
RPI 820
#6.1
04/16/1985
RPI 756
#4.1
08/14/1984
RPI 721
#3.1
04/17/1984
RPI 704
#2.1
04/12/1983
RPI 651
#21.1
Patente extinta em 25/02/98
07/01/2008
RPI 1956
From the same holder
Same category
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