Carta-patente expirada
#21.1
Patente extinta em 16/10/2004
12/29/2009
RPI 2034
Application data
Number
PI8905244Type
Filing
Publication
The letters patent expired on 12/29/2009: 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: 12/29/2009. We update with every new RPI gazette, published weekly.
Applicants
Idemitsu Petrochemical Co, Ltd
JP
Inventors
M. A. (pessoa física)
JP
T. K. (pessoa física)
JP
IPC Classification
Priority claims
JP
1-9.913 · 01/20/1989
JP
63-259.397 · 10/17/1988
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 16/10/2004
12/29/2009
RPI 2034
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11/27/1990
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05/15/1990
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03/27/1990
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