Pedido de patente depositado
#2.1
10/03/1989
RPI 989
Application data
Number
PI8903616Type
Filing
Publication
The letters patent expired on 12/26/2012: 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: 10/03/1989. We update with every new RPI gazette, published weekly.
Applicants
D. A. (pessoa física)
DE
Inventors
B. E. (pessoa física)
DE
E. K. (pessoa física)
DE
E. L. (pessoa física)
DE
H. V. (pessoa física)
DE
IPC Classification
Priority claims
DE
P3830317.5 · 09/07/1988
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
10/03/1989
RPI 989
#21.1
Patente extinta em 21/07/2009
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ALTERADA DE B01J 21/12, B01J23/64, B01J 23/10, B01J 37/02
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