Concessão da patente
#16.1
09/26/1989
RPI 988
Application data
Number
PI8403692Type
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: 09/26/1989. We update with every new RPI gazette, published weekly.
Applicants
TRACTECH INC [US]
Inventors
D. L. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
09/26/1989
RPI 988
#13.1
01/24/1989
RPI 953
#9.1
10/04/1988
RPI 937
#4.1
01/19/1988
RPI 900
#3.1
12/03/1985
RPI 789
#2.1
10/02/1984
RPI 728
#21.1
Patente extinta em 25/07/99
08/19/2008
RPI 1963
From the same holder
Same category
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