Concessão da patente
#16.1
06/24/1986
RPI 818
Application data
Number
PI8207811Type
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: 06/24/1986. We update with every new RPI gazette, published weekly.
Applicants
GREAT LAKES CARBON CORP [US]
Inventors
K. [. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
06/24/1986
RPI 818
#13.1
04/22/1986
RPI 809
#9.1
12/03/1985
RPI 789
#6.1
03/19/1985
RPI 752
#4.1
11/01/1983
RPI 680
#1.3
07/19/1983
RPI 665
#21.1
Patente extinta em 30/07/97
08/19/2008
RPI 1963
From the same holder
Same category
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