Publicação do pedido de patente
#3.1
11/10/1987
RPI 890
Application data
Number
PI8601775Type
Filing
Publication
The letters patent expired on 07/22/2008: 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: 11/10/1987. We update with every new RPI gazette, published weekly.
Applicants
Aluminum Company Of America
US
Inventors
D. K. (pessoa física)
US
D. C. (pessoa física)
US
M. W. (pessoa física)
US
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
11/10/1987
RPI 890
#2.1
10/29/1986
RPI 836
#21.1
Patente extinta em 18/04/2001
07/22/2008
RPI 1959
#16.1
01/26/1993
RPI 1156
#13.1
10/20/1992
RPI 1142
#9.1
06/02/1992
RPI 1122
#6.1
11/12/1991
RPI 1093
#4.1
06/26/1990
RPI 1024
From the same holder
Same category
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