Pedido de patente depositado
#2.1
05/23/1989
RPI 970
Application data
Number
PI8901610Type
Filing
Publication
The letters patent expired on 12/15/2009: 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: 05/23/1989. We update with every new RPI gazette, published weekly.
Applicants
Irmãos Geremia Ltda
RS, BR
Weatherford Indústria e Comércio Ltda
RS, BR
Inventors
S. G. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
05/23/1989
RPI 970
#21.1
Patente extinta em 30/03/2004
12/15/2009
RPI 2032
#25.1
Transferido de: Irmãos Geremia Ltda.
10/17/2000
RPI 1554
#25.7
12/30/1997
RPI 1410
#16.1
03/30/1993
RPI 1165
#13.1
09/08/1992
RPI 1136
#9.1
04/07/1992
RPI 1114
#4.1
10/30/1990
RPI 1039
#3.2
05/29/1990
RPI 1020
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