Solicitação de exame técnico
#4.1
03/21/1989
RPI 961
Application data
Number
PI8507250Type
Filing
Publication
PCT
US1985001477 The letters patent expired on 08/26/2008: 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: 03/21/1989. We update with every new RPI gazette, published weekly.
Applicants
Stone & Webster Engineering Corporation
US
Stone & Webster Process Technology, Inc.
US
Total Engineering And Research Company
US
Inventors
J. M. (pessoa física)
FR
R. N. (pessoa física)
US
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
03/21/1989
RPI 961
#1.3
10/27/1987
RPI 888
#21.1
Patente extinta em 25/08/2008
08/26/2008
RPI 1964
#25.1
Transferido de: Stone & Webster Engineering Corporation
12/13/2005
RPI 1823
#16.1
08/25/1998
RPI 1444
#13.1
05/13/1997
RPI 1380
#9.1
12/10/1996
RPI 1358
#6.1
02/27/1996
RPI 1317
#7.1
06/20/1995
RPI 1281
05/25/1993
RPI 1173
From the same holder
Same category
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