Solicitação de exame técnico
#4.1
02/02/1988
RPI 902
Application data
Number
PI8700364Type
Filing
Publication
The letters patent expired on 07/29/2008: 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: 02/02/1988. We update with every new RPI gazette, published weekly.
Applicants
Air Products Gases Industriais Ltda
SP, BR
Inventors
D. C. (pessoa física)
BR
P. F. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
02/02/1988
RPI 902
#3.2
10/06/1987
RPI 885
#2.1
05/26/1987
RPI 866
#21.1
Patente extinta em 28/01/2002
07/29/2008
RPI 1960
#16.1
11/26/1991
RPI 1095
#9.1
06/04/1991
RPI 1070
#6.1
01/09/1990
RPI 1001
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Same category
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