Carta-patente expirada
#21.1
Patente extinta em 22/12/2004
12/29/2009
RPI 2034
Application data
Number
PI8907263Type
Filing
Publication
PCT
US1989005656 The letters patent expired on 12/29/2009: 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: 12/29/2009. We update with every new RPI gazette, published weekly.
Applicants
Exxon Research And Engineering Company
US
M. W. (pessoa física)
US
T. W. (pessoa física)
US
Total Containment, Inc
US
Inventors
M. W. (pessoa física)
US
T. W. (pessoa física)
US
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 22/12/2004
12/29/2009
RPI 2034
#16.1
04/25/1995
RPI 1273
#13.1
12/20/1994
RPI 1255
#9.1
08/23/1994
RPI 1238
#6.1
11/30/1993
RPI 1200
06/08/1993
RPI 1175
#4.1
04/20/1993
RPI 1168
#1.3
03/12/1991
RPI 1058
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.