Solicitação de exame técnico
#4.1
10/18/1988
RPI 939
Application data
Number
PI8706196Type
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: 10/18/1988. We update with every new RPI gazette, published weekly.
Applicants
Universidade de São Paulo - USP
SP, BR
W. B. (pessoa física)
SP, BR
Inventors
W. B. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
10/18/1988
RPI 939
#3.2
07/26/1988
RPI 927
#2.1
03/29/1988
RPI 910
#21.1
Patente extinta em 14/05/2012
12/11/2012
RPI 2188
#16.1
05/14/2002
RPI 1636
#15.11
ALTERADA DE C30B 7/02, C30B 7/14, C30B 9/04, C30B 29/54
12/08/1998
RPI 1457
#9.1
09/29/1998
RPI 1449
#6.1
12/30/1997
RPI 1410
#6.1
08/06/1996
RPI 1340
#6.1
01/31/1995
RPI 1261
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