Pedido de patente depositado
#2.1
10/31/1989
RPI 993
Application data
Number
PI8903887Type
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: 10/31/1989. We update with every new RPI gazette, published weekly.
Applicants
N. P. (pessoa física)
US
Inventors
D. R. (pessoa física)
US
P. L. (pessoa física)
US
IPC Classification
Priority claims
US
297.258 · 08/02/1988
US
297.877 · 01/17/1989
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
10/31/1989
RPI 993
#21.1
Patente extinta em 02/08/2004
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