Concessão da patente
#16.1
12/27/1983
RPI 688
The patent was granted on 12/27/1983 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: 12/27/1983. We update with every new RPI gazette, published weekly.
Applicants
HITACHI CHEMICAL CO LTD
Inventors
N. H. (pessoa física)
S. T. (pessoa física)
T. K. (pessoa física)
W. K. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
12/27/1983
RPI 688
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10/04/1983
RPI 676
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06/14/1983
RPI 660
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01/25/1983
RPI 640
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08/17/1982
RPI 617
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09/25/1990
RPI 1034
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