Pedido de certificado de adição de invenção
#5.1
08/04/1987
RPI 876
Application data
Number
PI8501801Type
Filing
Publication
The letters patent expired on 07/15/2008: 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: 08/04/1987. We update with every new RPI gazette, published weekly.
Applicants
Michigan Consolidated Gas Company
US
Inventors
J. T. (pessoa física)
US
L. E. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#5.1
08/04/1987
RPI 876
#4.1
03/24/1987
RPI 857
#3.1
11/25/1986
RPI 840
#2.1
07/02/1985
RPI 767
#21.1
Patente extinta em 16/04/2000
07/15/2008
RPI 1958
#16.1
05/31/1994
RPI 1226
#9.1
10/26/1993
RPI 1195
#6.1
06/01/1993
RPI 1174
#6.1
09/22/1992
RPI 1138
From the same holder
Same category
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