Concessão da patente
#16.1
11/25/1986
RPI 840
The patent was granted on 11/25/1986 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.
Talk to a specialistLatest action published by the INPI: 11/25/1986. We update with every new RPI gazette, published weekly.
Applicants
KUREHA CHEMICAL IND CO LTD [JP]
Inventors
K. O. (pessoa física)
Y. O. (pessoa física)
Y. I. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
11/25/1986
RPI 840
07/01/1986
RPI 819
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04/17/1984
RPI 704
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02/21/1984
RPI 696
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12/27/1983
RPI 688
#4.1
11/17/1981
RPI 578
#18.2
08/02/1994
RPI 1235
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