Solicitação de exame técnico
#4.1
11/28/1989
RPI 997
Application data
Number
PI8706210Type
Filing
Publication
PCT
US1987000565 The letters patent expired on 07/29/2008: 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: 11/28/1989. We update with every new RPI gazette, published weekly.
Applicants
K. F. (pessoa física)
US
Waterguard Industries, Inc
US
Inventors
C. F. (pessoa física)
US
K. F. (pessoa física)
US
IPC Classification
Priority claims
US
844.144 · 03/26/1986
US
939.007 · 12/08/1986
Publications in the Brazilian Industrial Property Gazette (RPI).
#4.1
11/28/1989
RPI 997
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02/23/1988
RPI 905
#21.1
Patente extinta em 23/03/2002
07/29/2008
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#16.1
06/28/1994
RPI 1230
03/22/1994
RPI 1216
#13.1
10/26/1993
RPI 1195
#9.1
06/15/1993
RPI 1176
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