Carta-patente expirada
#21.1
Patente extinta em 21/05/2005
06/15/2010
RPI 2058
Application data
Number
PI9007520Type
Filing
Publication
PCT
US1990002763 The letters patent expired on 06/15/2010: 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: 06/15/2010. We update with every new RPI gazette, published weekly.
Applicants
Keystone International Holdings Corp
US
Inventors
M. K. (pessoa física)
US
R. F. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 21/05/2005
06/15/2010
RPI 2058
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06/23/1992
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