Concessão da patente
#16.1
07/25/1989
RPI 979
The letters patent expired on 03/26/1996: 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: 07/25/1989. We update with every new RPI gazette, published weekly.
Applicants
Corning Brasil Indústria e Comércio Ltda.
SP, BR
Corning Brasil Vidros Especiais Ltda
Inventors
D. B. (pessoa física)
J. A. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
07/25/1989
RPI 979
#13.1
02/21/1989
RPI 957
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11/01/1988
RPI 941
#4.1
08/19/1986
RPI 826
#3.2
06/24/1986
RPI 818
#2.1
06/17/1986
RPI 817
#21.1
03/26/1996
RPI 1321
01/03/1995
RPI 1257
#20.1
05/03/1994
RPI 1222
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