Carta-patente expirada
#21.1
Patente extinta em 23/08/2005
06/15/2010
RPI 2058
Application data
Number
PI9006891Type
Filing
Publication
PCT
EP1990001405 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
Drilltec Patents & Technologies Company, Inc
US
Inventors
R. K. (pessoa física)
DE
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 23/08/2005
06/15/2010
RPI 2058
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10/18/1994
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06/14/1994
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03/24/1992
RPI 1112
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10/22/1991
RPI 1090
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