Concessão da patente
#16.1
12/27/1988
RPI 949
Application data
Number
PI8402911Type
Filing
Publication
The letters patent expired on 08/19/2008: 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: 12/27/1988. We update with every new RPI gazette, published weekly.
Applicants
PEDCO INC [US]
Inventors
R. M. (pessoa física)
R. A. (pessoa física)
S. C. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
12/27/1988
RPI 949
#13.1
07/19/1988
RPI 926
#9.1
03/15/1988
RPI 908
#4.1
06/30/1987
RPI 871
#3.1
05/21/1985
RPI 761
#2.1
08/14/1984
RPI 721
#21.1
Patente extinta em 14/06/99
08/19/2008
RPI 1963
From the same holder
Same category
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