Carta-patente expirada
#21.1
Patente extinta em 24/07/2004
12/29/2009
RPI 2034
Application data
Number
PI8907896Type
Filing
Publication
PCT
US1989003137 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
U. C. (pessoa física)
US
Inventors
R. G. (pessoa física)
US
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 24/07/2004
12/29/2009
RPI 2034
#16.1
03/01/1995
RPI 1265
#13.1
10/18/1994
RPI 1246
#9.1
06/14/1994
RPI 1228
#4.1
08/24/1993
RPI 1186
#1.3
04/14/1992
RPI 1115
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.