Carta-patente expirada
#21.1
Patente extinta em 23/08/2004
12/29/2009
RPI 2034
Application data
Number
PI8907061Type
Filing
Publication
PCT
US1989003633 The letters patent expired on 12/29/2009: 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: 12/29/2009. We update with every new RPI gazette, published weekly.
Applicants
P. D. (pessoa física)
US
Inventors
P. D. (pessoa física)
US
IPC Classification
Priority claims
US
235.687 · 08/23/1988
US
320.977 · 03/09/1989
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 23/08/2004
12/29/2009
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