Carta-patente expirada
#21.1
Patente extinta em 23/01/2004
12/29/2009
RPI 2034
Application data
Number
PI8907876Type
Filing
Publication
PCT
US1989000274 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
Southwall Technologies, Inc.
US
Inventors
S. M. (pessoa física)
US
T. H. (pessoa física)
US
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 23/01/2004
12/29/2009
RPI 2034
#16.1
03/28/1995
RPI 1269
#13.1
09/27/1994
RPI 1243
#9.1
05/17/1994
RPI 1224
#4.1
02/02/1993
RPI 1157
#1.3
10/01/1991
RPI 1087
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.