Pedido de patente depositado
#2.1
11/28/1989
RPI 997
Application data
Number
PI8903804Type
Filing
Publication
The letters patent expired on 12/22/2009: 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: 11/28/1989. We update with every new RPI gazette, published weekly.
Applicants
E. C. (pessoa física)
US
Inventors
J. B. (pessoa física)
US
J. W. (pessoa física)
US
L. R. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
11/28/1989
RPI 997
#21.1
Patente extinta em 25/07/2004
12/22/2009
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06/28/1994
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03/15/1994
RPI 1215
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10/26/1993
RPI 1195
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06/30/1992
RPI 1126
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03/20/1990
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