Solicitação de exame técnico
#4.1
02/23/1988
RPI 905
Application data
Number
PI8506686Type
Filing
Publication
The letters patent expired on 07/15/2008: 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: 02/23/1988. We update with every new RPI gazette, published weekly.
Applicants
U. C. (pessoa física)
US
Inventors
D. B. (pessoa física)
US
G. S. (pessoa física)
R. R. (pessoa física)
US
IPC Classification
Priority claims
US
604.179 · 04/26/1984
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
02/23/1988
RPI 905
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Procedimento automático de reclassificação. As classificações IPC anteriores eram: B01J 29/02; B01J 29/06; C01B 33/28; C10G 11/05; C10G 49/08; C07C 5/02.
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07/15/2008
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