Concessão da patente
#16.1
05/27/1986
RPI 814
Application data
Number
PI8107703Type
Filing
Publication
The letters patent expired on 08/19/2008: 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: 05/27/1986. We update with every new RPI gazette, published weekly.
Applicants
TENNECO CHEM [US]
Inventors
B. J. (pessoa física)
H. S. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
05/27/1986
RPI 814
#9.1
10/15/1985
RPI 782
#6.1
12/26/1984
RPI 740
01/10/1984
RPI 690
#4.1
04/05/1983
RPI 650
#3.1
08/24/1982
RPI 618
#2.1
01/12/1982
RPI 586
#21.1
Patente extinta em 26/11/96
08/19/2008
RPI 1963
#20.1
07/31/1990
RPI 1026
From the same holder
Same category
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