Publicação do pedido de patente
#3.1
11/28/1989
RPI 997
Application data
Number
PI8901923Type
Filing
Publication
The letters patent expired on 12/15/2009: 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
I. C. (pessoa física)
US
Inventors
M. B. (pessoa física)
W. W. (pessoa física)
US
IPC Classification
Priority claims
US
186.417 · 04/26/1988
US
278.983 · 12/02/1988
Publications in the Brazilian Industrial Property Gazette (RPI).
#3.1
11/28/1989
RPI 997
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05/30/1989
RPI 971
#21.1
Patente extinta em 24/04/2004
12/15/2009
RPI 2032
#16.1
03/29/1994
RPI 1217
#9.1
08/17/1993
RPI 1185
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04/09/1991
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