Carta-patente expirada
#21.1
Patente extinta em 28/03/2009
12/18/2012
RPI 2189
Application data
Number
PI8907339Type
Filing
Publication
PCT
US1989001280 The letters patent expired on 12/18/2012: 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: 12/18/2012. We update with every new RPI gazette, published weekly.
Applicants
D. W. (pessoa física)
US
Separation Technologies, Inc.
US
Inventors
D. W. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 28/03/2009
12/18/2012
RPI 2189
#16.1
07/28/1998
RPI 1440
#9.1
05/20/1997
RPI 1381
#6.1
07/02/1996
RPI 1335
#6.1
11/14/1995
RPI 1302
07/05/1994
RPI 1231
#4.1
11/12/1991
RPI 1093
#1.3
03/19/1991
RPI 1059
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.