Pedido de patente depositado
#2.1
05/16/1989
RPI 969
Application data
Number
PI8901367Type
Filing
Publication
The letters patent expired on 12/15/2009: 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: 05/16/1989. We update with every new RPI gazette, published weekly.
Applicants
W. L. (pessoa física)
RS, BR
Inventors
W. L. (pessoa física)
BR
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
05/16/1989
RPI 969
#21.1
Patente extinta em 16/03/2004
12/15/2009
RPI 2032
12/17/1996
RPI 1359
#17.1
04/30/1996
RPI 1326
#16.1
01/31/1995
RPI 1261
#13.1
10/11/1994
RPI 1245
#9.1
06/07/1994
RPI 1227
#4.1
01/15/1991
RPI 1050
#3.1
10/23/1990
RPI 1038
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