Publicação do pedido de patente
#3.1
12/13/1988
RPI 947
Application data
Number
PI8802364Type
Filing
Publication
The letters patent expired on 12/11/2012: 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: 12/13/1988. We update with every new RPI gazette, published weekly.
Applicants
Hydra Fluids, Inc.
US
Inventors
T. P. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
12/13/1988
RPI 947
#2.1
10/11/1988
RPI 938
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C09K 7/02; E21B 21/00.
03/27/2018
RPI 2464
#21.1
Patente extinta em 27/10/2008
12/11/2012
RPI 2188
#16.1
10/27/1998
RPI 1451
#9.1
05/26/1998
RPI 1431
#6.1
10/08/1996
RPI 1349
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02/21/1995
RPI 1264
#4.1
02/19/1991
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