Publicação do pedido de patente
#3.1
07/04/1989
RPI 976
Application data
Number
PI8706561Type
Filing
Publication
The letters patent expired on 07/29/2008: 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: 07/04/1989. We update with every new RPI gazette, published weekly.
Applicants
Petróleo Brasileiro S/A - Petrobrás
RJ, BR
Inventors
C. K. (pessoa física)
BR
Z. F. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
07/04/1989
RPI 976
#2.1
04/12/1988
RPI 912
#21.1
Patente extinta em 04/12/2002
07/29/2008
RPI 1960
#16.1
01/31/1995
RPI 1261
#13.1
09/27/1994
RPI 1243
#9.1
05/10/1994
RPI 1223
#6.1
02/16/1994
RPI 1211
From the same holder
Same category
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