Concessão da patente
#16.1
05/30/1989
RPI 971
Application data
Number
PI8104011Type
Filing
Publication
The letters patent expired on 10/08/1996: 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: 05/30/1989. We update with every new RPI gazette, published weekly.
Applicants
Nippon Steel Glass Co. Ltd.
JP
Sumitomo Chemical Company Limited.
JP
Inventors
A. T. (pessoa física)
A. F. (pessoa física)
K. S. (pessoa física)
M. Y. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
05/30/1989
RPI 971
#13.1
11/29/1988
RPI 945
#9.1
08/02/1988
RPI 928
#6.1
08/04/1987
RPI 876
#7.1
01/02/1985
RPI 741
#4.1
01/10/1984
RPI 690
#3.1
02/01/1983
RPI 641
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: C09D 3/82; C08J 7/06.
03/27/2018
RPI 2464
#21.1
10/08/1996
RPI 1349
Same category
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